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Fabrication of highly functional thin film materials by controlling the interface

Planned Research

Project AreaNew Materials Science on Nanoscale Structures and Functions of Crystal Defect Cores
Project/Area Number 19H05791
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionHokkaido University

Principal Investigator

太田 裕道  北海道大学, 電子科学研究所, 教授 (80372530)

Co-Investigator(Kenkyū-buntansha) 寺崎 一郎  名古屋大学, 理学研究科, 教授 (30227508)
齊藤 圭司  慶應義塾大学, 理工学部(矢上), 教授 (90312983)
Project Period (FY) 2019-06-28 – 2024-03-31
Project Status Granted (Fiscal Year 2022)
Budget Amount *help
¥129,610,000 (Direct Cost: ¥99,700,000、Indirect Cost: ¥29,910,000)
Fiscal Year 2022: ¥30,810,000 (Direct Cost: ¥23,700,000、Indirect Cost: ¥7,110,000)
Fiscal Year 2021: ¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2020: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2019: ¥38,870,000 (Direct Cost: ¥29,900,000、Indirect Cost: ¥8,970,000)
Keywords界面制御 / 熱輸送特性 / 電子輸送特性
Outline of Research at the Start

物質の原子スケールにおける熱伝導や電子伝導を可視化することができれば、新しい材料やデバイス開発に繋がります。本研究では、目に見える大きさのものとは全く異なる熱輸送特性や電子輸送特性を示す原子スケールの特殊な界面を「機能コア」と位置づけ、超精密な薄膜・デバイス作製技術を駆使して機能コアを導入したモデル材料を作製し、相界面における熱輸送特性や電子輸送特性を調査し、巨大機能の発現とその制御を目指します。

Outline of Annual Research Achievements

物質の原子スケールにおける熱伝導や電子伝導を可視化することができれば、新しい材料やデバイス開発に繋がる。本研究では、目に見える大きさのものとは全く異なる熱輸送特性や電子輸送特性を示す原子スケールの特殊な界面を「機能コア」と位置づけ、超精密な薄膜・デバイス作製技術を駆使して機能コアを導入したモデル材料を作製し、相界面における熱輸送特性や電子輸送特性を調査し、巨大機能の発現とその制御を目指している。太田Gr.では、遷移金属酸化物エピタキシャル薄膜の熱伝導率を計測した。各種薄膜およびデバイスの機能コアの可視化については、A01(ア)(イ)班、A02(ウ)(エ)班、必要時に随時海外共同研究者に分析・解析を依頼した。寺崎Gr.では、機能性熱伝導物質を設計し、単結晶育成を行った。齊藤Gr.では、太田Gr.で得られた熱伝導率の結果を踏まえて機能コアの界面熱抵抗のモデル化を行った。また、太田Gr.では下記の研究成果に関してプレス発表を行った(2020年11月2日)。層状コバルト酸化物Na3/4CoO2薄膜のナトリウムイオンを様々な金属イオン(Ca1/3, Sr1/3, Ba1/3)に置き換えた結果、金属イオン層が重くなるにつれて、電気的な特性は変化せず、熱伝導率だけが減少することを突き止め、最終的に重いバリウムイオンに置き換えたとき、室温で熱電変換性能指数ZTが0.11に達することを発見した。一般に、性能指数ZTは高温になるほど上昇することから、真に安定で実用的な熱電変換材料の実現が期待される。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

2020年3月から本格化した新型コロナウィルス感染症の影響で国内外の学会における成果発表が滞ったが、論文発表は問題なくできている。(2020年度は21報の論文を発表)

Strategy for Future Research Activity

太田Gr.では、引き続き各種遷移金属酸化物薄膜の熱伝導率計測を行うとともに、遷移金属酸化物薄膜を活性層とする熱トランジスタを作製し、電気化学酸化還元前後の熱伝導率を計測する。各種薄膜およびデバイスの機能コアの可視化については、A01(ア)(イ)班、A02(ウ)(エ)班、必要時に随時海外共同研究者に分析・解析を依頼する。寺崎Gr.では、引き続き機能性熱伝導物質の設計と、その単結晶育成を行う。各種単結晶を育成した後、随時外場印加中の熱伝導率の精密測定を行う。得られた結果については解析的・数値的に検討し、物質組成の精密チューニングへとフィードバックする。齊藤Gr.では、引き続き太田Gr.で得られた熱伝導率の結果を踏まえて機能コアの界面熱抵抗のモデル化を随時行うとともに、界面熱抵抗のシミュレーションを行い、結果を太田Gr.にフィードバックする。具体的には、実験の設定に基づき定性的定量的な理論解析を行う。

Report

(2 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report

Research Products

(200 results)

All 2021 2020 2019 Other

All Int'l Joint Research (9 results) Journal Article (37 results) (of which Int'l Joint Research: 19 results,  Peer Reviewed: 36 results,  Open Access: 3 results) Presentation (145 results) (of which Int'l Joint Research: 64 results,  Invited: 16 results) Book (3 results) Remarks (4 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 2 results)

  • [Int'l Joint Research] フンボルト大学ベルリン校(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 釜山大学校(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 北京科技大(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Aalto大学(フィンランド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 台湾・国立交通大学(その他の国・地域)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 釜山大学校/成均館大学校(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] フンボルト大学ベルリン校(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 中国科学院 金属研究所(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 台湾・国立交通大学(その他の国・地域)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Insulator-to-Metal Transition of Cr2O3 Thin Films via Isovalent Ru3+ Substitution2021

    • Author(s)
      Fujiwara Kohei、Kitamura Miho、Shiga Daisuke、Niwa Yasuhiro、Horiba Koji、Nojima Tsutomu、Ohta Hiromichi、Kumigashira Hiroshi、Tsukazaki Atsushi
    • Journal Title

      Chem. Mater.

      Volume: 32 Pages: 5272-5272

    • DOI

      10.1021/acs.chemmater.0c01497

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication and characterization of tetragonal yttria-stabilized zirconia single-crystalline thin film2021

    • Author(s)
      H. Nakade, E. Tochigi, B. Feng, Y. Nezu, H. Ohta, N. Shibata, and Y. Ikuhara
    • Journal Title

      J. Am. Ceram. Soc.

      Volume: 104 Pages: 1198-1203

    • DOI

      10.1111/jace.17534

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Layered cobalt oxide epitaxial films exhibiting thermoelectric ZT = 0.11 at room temperature2021

    • Author(s)
      Takashima Yugo、Zhang Yu-qiao、Wei Jiake、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      J. Mater. Chem. A

      Volume: 9 Pages: 274-280

    • DOI

      10.1039/d0ta07565e

    • NAID

      120007182926

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic Electrical Conductivity of Oxygen-Deficient Tungsten Oxide Films with Epitaxially Stabilized 1D Atomic Defect Tunnels2021

    • Author(s)
      Kim Gowoon、Feng Bin、Ryu Sangkyun、Cho Hai Jun、Jeen Hyoungjeen、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      ACS Appl. Mater. Interfaces

      Volume: 13 Pages: 6864-6869

    • DOI

      10.1021/acsami.0c21240

    • NAID

      120007189932

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anomalously Low Heat Conduction in Single‐Crystal Superlattice Ceramics Lower Than Randomly Oriented Polycrystals2021

    • Author(s)
      Cho Hai Jun、Wu Yuzhang、Zhang Yu‐Qiao、Feng Bin、Mikami Masashi、Shin Woosuck、Ikuhara Yuichi、Sheu Yu‐Miin、Saito Keiji、Ohta Hiromichi
    • Journal Title

      Adv. Mater. Interfaces

      Volume: 8 Pages: 2001932-2001932

    • DOI

      10.1002/admi.202001932

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Low thermal conductivity of SrTiO3-LaTiO3 and SrTiO3-SrNbO3 thermoelectric oxide solid solutions2021

    • Author(s)
      Yuqiao Zhang*, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Yao-Hua Zhuang, Bin Feng, Yu-Miin Sheu*, Woosuck Shin, Woo Seok Choi, Myung Joon Han, Yuichi Ikuhara, and Hiromichi Ohta*
    • Journal Title

      J. Am. Ceram. Soc.

      Volume: - Pages: 4075-4085

    • DOI

      10.1111/jace.17797

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Room Temperature Thermoelectric Properties of Isostructural Selenides Ta2PdS6 and Ta2PdSe62021

    • Author(s)
      Nakano Akitoshi、Maruoka Urara、Kato Fumiaki、Taniguchi Hiroki、Terasaki Ichiro
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 90 Issue: 3 Pages: 033702-033702

    • DOI

      10.7566/jpsj.90.033702

    • NAID

      210000158830

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Delta-T noise in the Kondo regime2021

    • Author(s)
      Hasegawa Masahiro、Saito Keiji
    • Journal Title

      Phys. Rev. B

      Volume: 103 Pages: 045409-045409

    • DOI

      10.1103/physrevb.103.045409

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electric field thermopower modulation analyses of the operation mechanism of transparent amorphous SnO2 thin-film transistor2020

    • Author(s)
      Dou-dou Liang*, Yu-qiao Zhang, Hai Jun Cho and Hiromichi Ohta*
    • Journal Title

      Appl. Phys. Lett.

      Volume: 116 Pages: 143503-143503

    • DOI

      10.1063/5.0003153

    • NAID

      120007007922

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Oligothiophene‐Based Phosphonates for Surface Modification of Ultraflat Transparent Conductive Oxides2020

    • Author(s)
      M. Timpel, M. V. Nardi, B. Wegner, G. Ligorio, L. Pasquali, M. Patzel, S. Hecht, H. Ohta, and N. Koch
    • Journal Title

      Adv. Mater. Interfaces

      Volume: 7 Pages: 1902114-1902114

    • DOI

      10.1002/admi.201902114

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fabrication and Operating Mechanism of Deep‐UV Transparent Semiconducting SrSnO3‐Based Thin Film Transistor2020

    • Author(s)
      Mian Wei, Lizhikun Gong, Dou-dou Liang, Hai Jun Cho*, and Hiromichi Ohta*
    • Journal Title

      Adv. Electron. Mater.

      Volume: 6 Pages: 2000100-2000100

    • DOI

      10.1002/aelm.202000100

    • NAID

      120007097392

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unusually Large Thermopower Change from +330 to -185 μV K-1 of Brownmillerite SrCoO2.52020

    • Author(s)
      Yang Qian、Lee Joonhyuk、Feng Bin、Ikuhara Yuichi、Kim Gowoon、Cho Hai Jun、Jeen Hyoungjeen、Ohta Hiromichi
    • Journal Title

      ACS Appl. Electron. Matter.

      Volume: 2 Pages: 2250-2256

    • DOI

      10.1021/acsaelm.0c00427

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coexistence of High Electron Conduction and Low Heat Conduction in Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels2020

    • Author(s)
      Kim Gowoon、Feng Bin、Sheu Yu-Miin、Cho Hai Jun、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      ACS Appl. Electron. Mater.

      Volume: 2 Pages: 2507-2513

    • DOI

      10.1021/acsaelm.0c00428

    • NAID

      120007140364

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spontaneous Generation of Carrier Electrons at the Interface between Polycrystalline ZnO and Amorphous InGaZnO42020

    • Author(s)
      Fabian Krahl, Yuzhang Wu, Hai Jun Cho*, Maarit Karppinen, and Hiromichi Ohta*
    • Journal Title

      Adv. Electron. Mater.

      Volume: 6 Pages: 2000404-2000404

    • DOI

      10.1002/aelm.202000404

    • NAID

      120007160291

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Non-equilibrium Steady State in the Mott Insulator Ca2RuO42020

    • Author(s)
      Ichiro Terasaki, Isuzu Sano, Kosuke Toda, Shuji Kawasaki, Akitoshi Nakano, Hiroki Taniguchi, Hai Jun Cho, Hiromichi Ohta, and Fumihiko Nakamura
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 9 Pages: 093707-093707

    • DOI

      10.7566/jpsj.89.093707

    • NAID

      120006941020

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thickness Optimization toward High-Performance Bottom-Gated Transparent Tin Dioxide Thin-Film Transistors2020

    • Author(s)
      Dou-dou Liang*, Binjie Chen, Hai Jun Cho, and Hiromichi Ohta*
    • Journal Title

      ACS Appl. Electron. Mater.

      Volume: 2 Pages: 3454-3458

    • DOI

      10.1021/acsaelm.0c00711

    • NAID

      120007166175

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Charge and thermoelectric transport mechanism in donor-acceptor copolymer films2020

    • Author(s)
      Kanahashi Kaito、Noh Yong-Young、Park Won-Tae、Yang Hoichang、Ohta Hiromichi、Tanaka Hisaaki、Takenobu Taishi
    • Journal Title

      Phys. Rev. Res.

      Volume: 2 Pages: 43330-43330

    • DOI

      10.1103/physrevresearch.2.043330

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tuning of the Optoelectronic Properties for Transparent Oxide Semiconductor ASnO3 by Modulating the Size of A-Ions2020

    • Author(s)
      Mian Wei*, Hai Jun Cho, and Hiromichi Ohta*
    • Journal Title

      ACS Appl. Electron. Mater.

      Volume: 2 Pages: 3971-3976

    • DOI

      10.1021/acsaelm.0c00806

    • NAID

      120007179821

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimization of Two-Dimensional Channel Thickness in Nanometer-Thick SnO2-Based Top-Gated Thin-Film Transistors Using Electric Field Thermopower Modulation: Implications for Flat-Panel Displays2020

    • Author(s)
      Liang Doudou、Chen Bin-jie、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      ACS Appl. Nano Mater.

      Volume: 3 Pages: 12427-12432

    • DOI

      10.1021/acsanm.0c03069

    • NAID

      120007181261

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Strictly Linear Light Cones in Long-Range Interacting Systems of Arbitrary Dimensions2020

    • Author(s)
      Tomotaka Kuwahara, Keiji Saito
    • Journal Title

      Phys. Rev. X

      Volume: 10 Pages: 031010-031010

    • DOI

      10.1103/physrevx.10.031010

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anisotropic Heat Conduction in Ion Substituted Layered Cobalt Oxides2020

    • Author(s)
      Hai Jun Cho*, Yugo Takashima, Yukio Nezu, Takaki Onazato, Hiromichi Ohta*
    • Journal Title

      Advanced Materials Interfaces

      Volume: 7 Pages: 1901816-1901816

    • DOI

      10.1002/admi.201901816

    • NAID

      120006957261

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal2020

    • Author(s)
      Seung Gyo Jeong, Taewon Min, Sungmin Woo, Jiwoong Kim, Yu-Qiao Zhang, Seong Won Cho, Jaeseok Son, Young-Min Kim, Jung Hoon Han, Sungkyun Park, Hu Young Jeong, Hiromichi Ohta, Suyoun Lee, Tae Won Noh, Jaekwang Lee*, Woo Seok Choi*
    • Journal Title

      Physical Review Letters

      Volume: 124 Pages: 026401-026401

    • DOI

      10.1103/physrevlett.124.026401

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High electrical conducting deep-ultraviolet-transparent oxide semiconductor La-doped SrSnO3 exceeding ~3000 S cm-12020

    • Author(s)
      Wei Mian、Sanchela Anup V.、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      Appl. Phys. Lett.

      Volume: 116 Pages: 022103-022103

    • DOI

      10.1063/1.5128410

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An oxide-based flexible electrochromic transistor under mechanical stress2020

    • Author(s)
      Takaki Onozato*, Hai Jun Cho, Hiromichi Ohta*
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: 2 Pages: 024002-024002

    • DOI

      10.7567/1347-4065/ab6563

    • NAID

      120006955179

    • ISSN
      0021-4922, 1347-4065
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Arbitrary control of the diffusion potential between a plasmonic metal and a semiconductor by an angstrom-thick interface dipole layer2020

    • Author(s)
      Oshikiri Tomoya, Sawayanagi Hiroki, Nakamura Keisuke, Ueno Kosei, Katase Takayoshi, Ohta Hiromichi, Misawa Hiroaki
    • Journal Title

      J. Chem. Phys.

      Volume: 152 Pages: 034705-034705

    • DOI

      10.1063/1.5134900

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of lattice distortions on the electron and thermal transport properties of transparent oxide semiconductor Ba1-xSrxSnO3 solid solution films2020

    • Author(s)
      Hai Jun Cho,* Koichi Sato, Mian Wei, Gowoon Kim, Hiromichi Ohta*
    • Journal Title

      J. Appl. Phys.

      Volume: 127

    • DOI

      10.1063/5.0002172

    • NAID

      120006995794

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Current-induced Giant Lattice Deformation in the Mott Insulator Ca2RuO42020

    • Author(s)
      Okazaki Ryuji、Kobayashi Kensuke、Kumai Reiji、Nakao Hironori、Murakami Youichi、Nakamura Fumihiko、Taniguchi Hiroki、Terasaki Ichiro
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 4 Pages: 044710-044710

    • DOI

      10.7566/jpsj.89.044710

    • NAID

      210000158121

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Examination of Nonlinear Conductivity on the Excitonic Insulator Candidate Ta2NiSe52020

    • Author(s)
      A.Nakano, U. Maruoka, H. Taniguchi, and I. Terasaki
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 89 Issue: 4 Pages: 045001-045001

    • DOI

      10.7566/jpsj.89.045001

    • NAID

      210000158094

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermodynamic Geometry of Microscopic Heat Engines2020

    • Author(s)
      Kay Brandner and Keiji Saito
    • Journal Title

      Phys. Rev. Lett.

      Volume: 124

    • DOI

      10.1103/physrevlett.124.040602

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Thermoelectric Phase Diagram of the SrTiO3-LaTiO3 Solid-Solution System through a Metal to Mott Insulator Transition2019

    • Author(s)
      Yuqiao Zhang*, Kenyu Sugo, Hai Jun Cho, Hiromichi Ohta*
    • Journal Title

      Journal of Applied Physics

      Volume: 126 Pages: 075104-075104

    • DOI

      10.1063/1.5100993

    • NAID

      120006878353

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of electrical and thermal transport property reductions in La-doped BaSnO3 films2019

    • Author(s)
      Cho Hai Jun、Feng Bin、Onozato Takaki、Wei Mian、Sanchela Anup V.、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      Phys. Rev. Mater.

      Volume: 3 Pages: 094601-094601

    • DOI

      10.1103/physrevmaterials.3.094601

    • NAID

      120006783671

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Macroscopic visualization of fast electrochemical reaction of SrCoOx oxygen sponge2019

    • Author(s)
      Qian Yang, Hai Jun Cho, Hyoungjeen Jeen*, Hiromichi Ohta*
    • Journal Title

      Adv. Mater. Interfaces

      Volume: 6

    • DOI

      10.1002/admi.201901260

    • NAID

      120006939398

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Giant power factors in p- and n-type large-area graphene films on a flexible plastic substrate2019

    • Author(s)
      Kanahashi Kaito、Ishihara Masatou、Hasegawa Masataka、Ohta Hiromichi、Takenobu Taishi
    • Journal Title

      npj 2D Mater. Appl.

      Volume: 3 Pages: 115141-115141

    • DOI

      10.1038/s41699-019-0128-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ferroelectric oxide thin film with an out-of-plane electrical conductivity2019

    • Author(s)
      Tingting Yao, Yixiao Jiang, Chunlin Chen*, Xuexi Yan, Ang Tao, Lixin Yang, Chuihong Li, Kenyu Sugo, Hiromichi Ohta, Hengqiang Ye, Yuichi Ikuhara, Xiuliang Ma*
    • Journal Title

      Nano Lett.

      Volume: 20 Pages: 1047-1053

    • DOI

      10.1021/acs.nanolett.9b04210

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Oxide-based optical, electrical, and magnetic properties switching devices with water-incorporated gate insulator2019

    • Author(s)
      Takayoshi Katase and Hiromichi Ohta
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 9 Pages: 090501-090501

    • DOI

      10.7567/1347-4065/ab02a5

    • NAID

      210000135460

    • ISSN
      0021-4922, 1347-4065
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 薄い電子層を絶縁体でサンドイッチ:熱電変換特性を高める方法2019

    • Author(s)
      太田裕道, 張 雨橋
    • Journal Title

      車載テクノロジー

      Volume: 6 Pages: 38-38

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Electron sandwich doubles the thermoelectric power factor of SrTiO32019

    • Author(s)
      Yuqiao Zhang, Hiromichi Ohta
    • Journal Title

      Phys. Status Solidi A

      Volume: -

    • DOI

      10.1002/pssa.201800832

    • NAID

      120006843072

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 金属酸化物薄膜の熱電能・熱伝導2021

    • Author(s)
      太田裕道
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Anisotropy in the electrical conductivity of oxygen deficient WOx with 1D atomic defect tunnels2021

    • Author(s)
      G. Kim, B. Feng, S. Ryu, H. Jeen, H.J. Cho, Y. Ikuhara, and H. Ohta
    • Organizer
      第56回 応用物理学会北海道支部/第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Optoelectronic properties of La-doped CaSnO3-SrSnO3-BaSnO32021

    • Author(s)
      M. Wei. H.J. Cho, and H. Ohta
    • Organizer
      第56回 応用物理学会北海道支部/第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Realization of SrCoO2 epitaxial films by electrochemical reduction using YSZ solid electrolyte2021

    • Author(s)
      Q. Yang, J. Lee, H. Jeen, B. Feng, Y. Ikuhara, H.J. Cho, and H. Ohta
    • Organizer
      第56回 応用物理学会北海道支部/第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Modulation of the Metal-to-Insulator Transition Behavior of VO2 Epitaxial Films by Insertion of TiO2 Layers2021

    • Author(s)
      Binjie Chen, Gowoon Kim, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      第56回 応用物理学会北海道支部/第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 水素還元LaドープBaSnO3エピタキシャル薄膜のキャリア移動度向上2021

    • Author(s)
      藤本卓嗣, ジョヘジュン, 太田裕道
    • Organizer
      第56回 応用物理学会北海道支部/第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Phonon-Glass and Electron-Crystal Behavior of WOx Films containing 1D Atomic Defect Tunnels2021

    • Author(s)
      Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      Electronic Materials and Applications 2021 (EMA2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Solid-state Electrochemical Protonation / Oxidation of SrCoOx Films2021

    • Author(s)
      Qian Yang, Joonhyuk Lee, Hyoungjeen Jeen, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      Electronic Materials and Applications 2021 (EMA2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modulation of the Metal-to-Insulator Transition Behavior of VO2 Films2021

    • Author(s)
      Binjie Chen, Gowoon Kim, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Thermoelectric Properties of Tungsten Oxide Films with 1D Atomic Defect Tunnels2021

    • Author(s)
      Gowoon Kim, Bin Feng, Yu-Miin Sheu, Sangkyun Ryu, Hyoungjeen Jeen, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Band Engineering of Transparent Oxide Semiconductor ASnO3 (A = Ba, Ca, and Sr)2021

    • Author(s)
      Mian Wei, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Electrochemical Redox reaction of SrCoO2.5 films using YSZ oxide ion conductor2021

    • Author(s)
      Q. Yang, J. Lee, H. Jeen, J. Wei, B. Feng, Y. Ikuhara, H.J. Cho, and H. Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Electrochemical modulation of superconducting properties in YBa2Cu3O7-δ Films2021

    • Author(s)
      Xi Zhang, Gowoon Kim, Qian Yang, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Temperature Dependence of Thermoelectric Properties of Ba1/3CoO2 Epitaxial Films2021

    • Author(s)
      Y. Zhang, Y. Takashima, L. Wu, H.J. Cho, and H. Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Anomalously Low Heat Conduction in Single-Crystal Superlattice Ceramics Lower than Randomly Oriented Polycrystals2021

    • Author(s)
      Y. Wu, H.J. Cho, Y. Zhang, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, Y. Sheu, K. Saito, and H. Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Anisotropic Heat Conduction of Coherent Phonons in Superlattices2021

    • Author(s)
      Hai Jun Cho, Youngha Kwon, Yuzhang Wu, and Hiromichi Ohta
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ru置換Cr2O3薄膜における絶縁体金属転移とRu3+状態2021

    • Author(s)
      藤原宏平, 北村未歩, 志賀大亮, 丹羽尉博, 堀場弘司, 野島 勉, 太田裕道, 組頭広志, 塚﨑 敦
    • Organizer
      2021年 第68回 応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 熱電材料の物理2021

    • Author(s)
      寺崎一郎
    • Organizer
      はじめての熱電変換 日本熱電学会オンデマンドセミナー
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Invited
  • [Presentation] ハーマン法を応用したCa2RUO4のペルチェ係数測定2021

    • Author(s)
      佐野五十鈴, 中村文彦, 中埜彰俊, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会第76回年次大会 2021年3月12日~15日 オンライン
    • Related Report
      2020 Annual Research Report
  • [Presentation] レーザー変位計を用いたCa2RuO4の熱膨張係数測定2021

    • Author(s)
      森本大輔, 中村文彦, 中埜彰俊, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会第76回年次大会 2021年3月12日~15日 オンライン
    • Related Report
      2020 Annual Research Report
  • [Presentation] 層状遷移金属カルコゲナイドTa2PdSe6の巨大電力因子2021

    • Author(s)
      中埜彰俊, 丸岡うらら, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会第76回年次大会 2021年3月12日~15日 オンライン
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新規熱電半金属Ta2PdSe6のS置換効果2021

    • Author(s)
      丸岡うらら, 中埜彰俊, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会第76回年次大会 2021年3月12日~15日 オンライン
    • Related Report
      2020 Annual Research Report
  • [Presentation] 層状酸化物Ba1/3CoO2エピタキシャル薄膜の作製と熱電特性2020

    • Author(s)
      高嶋佑伍, Yuqiao Zhang, Jiake Wei, Bin Feng, 幾原雄一, Hai Jun Cho, 太田裕道
    • Organizer
      応用物理学会 KOSEN SC 第1回VR学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Branching of Electrical and Thermal Conductivities in La- and Nb-substituted SrTiO32020

    • Author(s)
      Y. Zhang, H.J. Cho, K. Sugo, M. Mikami, S. Woo, M.-C. Jung, Y.-H. Zhuang, B. Feng, Y.-M. Sheu, W. Shin, W.S. Choi, M.J. Han, Y. Ikuhara, and H. Ohta
    • Organizer
      Virtual Conference on Thermoelectrics (VCT 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterization of Ba1/3CoO2 Epitaxial Films Exhibiting Thermoelectric ZT = 0.12 at Room Temperature2020

    • Author(s)
      Yugo Takashima, Yu-qiao Zhang, Jiake Wei, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      THE 27th INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLAT PANEL DISPLAYS AND DEVICES (AM-FPD20)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Operating Mechanism of Deep-UV Transparent Semiconducting SrSnO3-based Thin Film Transistor2020

    • Author(s)
      Lizhikun Gong, Mian Wei, Dou-dou Liang, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      THE 27th INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLAT PANEL DISPLAYS AND DEVICES (AM-FPD20)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] イオン置換を施した層状コバルト酸化物AxCoO2の異方的熱伝導率2020

    • Author(s)
      太田裕道, 高嶋佑伍, 小野里尚記, ジョ ヘジュン
    • Organizer
      日本セラミックス協会 第33回秋季シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Electric Field Thermopower Modulation Analyses of the Channel Thickness for SnO2 Thin Film Transistors2020

    • Author(s)
      Doudou Liang, Binjie Chen, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Solid-State Electrochemical Protonation/Oxidation of Oxygen Sponge SrCoO2.5 Films2020

    • Author(s)
      Qian Yang, Bin Feng, Yuichi Ikuhara, Hyoungjeen Jeen, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 側鎖変調されたポリチオフェンドープ 膜の構造と伝導特性2020

    • Author(s)
      伊藤駿一郎, 中嶋大志, 金橋魁利, 田中久暁, 太田裕道, 竹延大志
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 深紫外透明SrSnO3薄膜トランジスタの作製と熱電能電界変調2020

    • Author(s)
      ごん李治坤, 魏 冕, 梁 豆豆, Hai Jun Cho, 太田裕道
    • Organizer
      日本金属学会 2020年秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 層状酸化物Ba1/3CoO2エピタキシャル薄膜の作製と熱電特性2020

    • Author(s)
      高嶋佑伍, 張 雨橋, 魏 家科, 馮 斌, 幾原雄一, Hai Jun Cho, 太田裕道
    • Organizer
      日本金属学会 2020年秋期(第167回)講演大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Suppression of Anisotropic Heat Conduction in Ion-substituted Layered Cobalt Oxides2020

    • Author(s)
      Hiromichi Ohta, Hai Jun Cho, Yugo Takashima, Takaki Onozato
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid State Science (PRiME 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High Electron and Low Heat Transports of 1D Atomic Defect Tunnels Stabilized in Tungsten Oxide Epitaxial Films2020

    • Author(s)
      Gowoon Kim, Bin Feng, Yu-Miin Sheu, Hai Jun Cho, Yuichi Ikuhara, and Hiromichi Ohta
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid State Science (PRiME 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electric field thermopower modulation analyses of the operation mechanism of transparent amorphous SnO2 thin-film transistor2020

    • Author(s)
      Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid State Science (PRiME 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrochemical Manipulation of the Electron Transports of SrCoOx Epitaxial Films2020

    • Author(s)
      Qian Yang,Hai Jun Cho,Hyoungjeen Jeen,Hiromichi Ohta
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid State Science (PRiME 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新しい透明酸化物半導体LaドープBaSnO3薄膜 -微細構造,化学結合状態,電子輸送特性に及ぼす熱処理の影響-2020

    • Author(s)
      藤本卓嗣, ジョへジュン, 太田裕道
    • Organizer
      第5回 北海道大学 部局横断シンポジウム-新世代の融合研究を目指して-
    • Related Report
      2020 Annual Research Report
  • [Presentation] Heat and Electron Transports of 1D Atomic Defect Tunnels Stabilized in WOx Films2020

    • Author(s)
      Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      薄膜材料デバイス研究会 第17回研究会「薄膜デバイスの原点」
    • Related Report
      2020 Annual Research Report
  • [Presentation] Electrochemical Protonation / Oxidation of SrCoO2.5 Films using CAN as the Solid Electrolyte2020

    • Author(s)
      Qian Yang, Joonhyuk Lee, Hyoungjeen Jeen, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      薄膜材料デバイス研究会 第17回研究会「薄膜デバイスの原点」
    • Related Report
      2020 Annual Research Report
  • [Presentation] 室温で ZT = 0.11を示すBa1/3CoO2 エピタキシャル薄膜の作製と評価2020

    • Author(s)
      高嶋佑伍, 張 雨橋, 魏 家科, 馮 斌, 幾原雄一, Hai Jun Cho, 太田裕道
    • Organizer
      薄膜材料デバイス研究会 第17回研究会「薄膜デバイスの原点」
    • Related Report
      2020 Annual Research Report
  • [Presentation] Structure and Charge Transport Analyses in Ionic-Liquid-Gated Conducting Polymer Thin Films with 2D-Ordered Crystallites2020

    • Author(s)
      Shun-ichiro Ito, Kaito Kanahashi, Hisaaki Tanaka, Hiroshi Ito, Hiromichi Ohta, and Taishi Takenobu
    • Organizer
      33rd International Microprocess and Nanotechnology Conference (MNC2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Heat and electron transports of 1D atomic defect tunnels stabilized in tungsten oxide epitaxial films2020

    • Author(s)
      Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      令和2年度 日本セラミックス協会 東北北海道支部 研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Metal-to-insulator transition temperature reduction of VO2 films by inserting TiO2 layers2020

    • Author(s)
      Binjie Chen, Gowoon Kim, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      令和2年度 日本セラミックス協会 東北北海道支部 研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] LaドープBaSnO3薄膜の微細構造,化学結合状態,電子輸送特性に及ぼす熱処理の影響2020

    • Author(s)
      藤本卓嗣, ジョヘジュン, 太田裕道
    • Organizer
      令和2年度 日本セラミックス協会 東北北海道支部 研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 室温で熱電変換性能指数ZT = 0.11を示す層状コバルト酸化物エピタキシャル薄膜2020

    • Author(s)
      張 雨橋, 高嶋佑伍, 魏 家科, 馮 斌, 幾原雄一, ジョヘジュン, 太田裕道
    • Organizer
      第14回物性科学領域横断研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 酸化タングステンエピタキシャル薄膜中で安定化された1次元原子欠陥トンネルの異方性電子輸送2020

    • Author(s)
      キムゴウン,フウビン,リュサンギュン,ジンヒョンジン,ジョヘジュン,幾原雄一,太田裕道
    • Organizer
      第14回物性科学領域横断研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] (Li,La)TiO3対称傾角粒界における原子・電子構造とリチウムイオン伝導物性2020

    • Author(s)
      佐々野駿, 石川亮, 太田裕道, 柴田直哉, 幾原雄一
    • Organizer
      第14回物性科学領域横断研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Reduction of Metal-to-Insulator Transition Temperature of VO2 Films by Inserting TiO2 Layers2020

    • Author(s)
      Binjie Chen, Gowoon Kim, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      The 21st RIES-Hokudai International Symposium 間 [ma]
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large Anisotropy of Electron Transport in Oxygen Deficient Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels2020

    • Author(s)
      Gowoon Kim, Bin Feng, Sangkyun Ryu, Hai Jun Cho, Hyoungjeen Jeen, Yuichi Ikuhara, and Hiromichi Ohta
    • Organizer
      The 21st RIES-Hokudai International Symposium 間 [ma]
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrochemical Redox Control of SrCoOx Epitaxial Films using YSZ as the Solid Electrolyte2020

    • Author(s)
      Qian Yang, Joonhyuk Lee, Hyoungjeen Jeen, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      The 21st RIES-Hokudai International Symposium 間 [ma]
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of heat treatment on the microstructure, electron transport properties and chemical bonding states of La-doped BaSnO3 films2020

    • Author(s)
      Takashi Fujimoto, Hai Jun Cho, and Hiromichi Ohta
    • Organizer
      The 21st RIES-Hokudai International Symposium 間 [ma]
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electron and heat transport properties of BaTiO3-BaNbO3 solid solution epitaxial films2020

    • Author(s)
      Yuqiao Zhang, Hai Jun Cho and Hiromichi Ohta
    • Organizer
      The 21st RIES-Hokudai International Symposium 間 [ma]
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] モット絶縁体Ca2RuO4の非線形伝導下の熱電効果2020

    • Author(s)
      寺崎一郎,岡崎竜二,中村文彦
    • Organizer
      日本熱電学会 第17回学術講演会, 2020年9月28日~30日 オンライン
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] Fluctuating hydrodynamics in lattice systems: microscopic view and thermodynamics2020

    • Author(s)
      K. Saito
    • Organizer
      Stochastic thermodynamics in complex systems, Vienna, (May27-29, 2020)
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] SU(2)近藤効果における温度誘起電流ノイズ2020

    • Author(s)
      長谷川雅大, 齊藤圭司
    • Organizer
      日本物理学会 2020年秋季大会 オンライン開催 2020年9月8~11日
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] Electron transport properties of wide bandgap transparent oxide semiconductor, BaSnO3-SrSnO32020

    • Author(s)
      Hiromichi Ohta
    • Organizer
      The 12th International Workshop on Oxide Surfaces: IWOX-XII
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A WO3-based electrochromic transistor on PET substrate2020

    • Author(s)
      Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 12th International Workshop on Oxide Surfaces: IWOX-XII
    • Related Report
      2019 Annual Research Report
  • [Presentation] 深紫外透明酸化物半導体を活性層とする薄膜トランジスタの作製と熱電能電界変調2020

    • Author(s)
      Lizhikun Gong, Dou-dou Liang, Mian Wei, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 熱電能電界変調法によるアモルファスSnO2透明薄膜トランジスタ動作解析2020

    • Author(s)
      Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Clarification of anisotropic heat transport in a natural oxide superlattice InGaO3(ZnO)m2020

    • Author(s)
      Yuzhang Wu, Hai Jun Cho, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito, Hiromichi Ohta
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sr1-xLaxTiO3全率固溶体エピタキシャル薄膜の熱電特性の解明2020

    • Author(s)
      須郷堅雄, Yu-qiao Zhang, Hai Jun Cho, 太田裕道
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 配向の異なる層状コバルト酸化物エピタキシャル薄膜の熱伝導率2020

    • Author(s)
      高嶋佑伍, 小野里尚記, Hai Jun Cho, 太田裕道
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高電気伝導率を示すMagneli WOx薄膜の異常低熱伝導率2020

    • Author(s)
      Gowoon Kim, Bin Feng, Hai Jun Cho, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 熱電特性と導電性AFMによるSrCoOxの電気化学反応の巨視的可視化2020

    • Author(s)
      楊 倩, Hai Jun Cho, Hyoungjeen Jeen, 太田裕道
    • Organizer
      第55回応用物理学会北海道支部/第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 情報記憶材料SrCoOx薄膜における電気化学酸化反応の巨視的可視化2020

    • Author(s)
      楊 倩, Hai Jun Cho, Hyoungjeen Jeen, 太田裕道
    • Organizer
      化学系学協会北海道支部2020年冬季研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 層状コバルト酸化物AxCoO2 (A = Li, Na, Ca, Sr) 薄膜の熱電特性の結晶方位依存性2020

    • Author(s)
      高嶋佑伍, 小野里尚記, Hai Jun Cho, 太田裕道
    • Organizer
      化学系学協会北海道支部2020年冬季研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Fabrication and thermopower modulation of deep-ultraviolet transparent SrSnO3 thin film transistor2020

    • Author(s)
      Lizhikun Gong, Dou-dou Liang, Mian Wei, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      化学系学協会北海道支部2020年冬季研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Phonon-Glass Electron-Crystal behavior in Magneli tungsten oxide2020

    • Author(s)
      Gowoon Kim, Hai Jun Cho, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      第67回 応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Electric field thermopower modulation analyses of the operation mechanism of amorphous SnO2 thin film transistor2020

    • Author(s)
      Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      第67回 応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 層状コバルト酸化物薄膜の熱電変換性能指数増強2020

    • Author(s)
      高嶋佑伍, 小野里尚記, Hai Jun Cho, 太田裕道
    • Organizer
      第67回 応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Electron transport properties of transparent oxide semiconductor, BaSnO3-SrSnO3: Epitaxial films and thin film transistors2019

    • Author(s)
      Hiromichi Ohta, Anup V. Sanchela
    • Organizer
      EM-NANO 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Thermoelectric properties of two-dimensional electron system -superlattices and TFT channel-2019

    • Author(s)
      Hiromichi Ohta
    • Organizer
      2019 Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Double enhancement of thermoelectric power factor in SrTiO3 based electron sandwitch2019

    • Author(s)
      Hiromichi Ohta, Yuqiao Zhang
    • Organizer
      4th Functional Oxide Thin Films for Advanced Energy and Information Technology Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 透明酸化物半導体BaSnO3-SrSnO3の電子輸送-エピタキシャル薄膜と薄膜トランジスタ-2019

    • Author(s)
      太田裕道
    • Organizer
      日本金属学会 2019年秋期(第165回)講演大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 酸化物を使った電界(電解)効果トランジスタの開発2019

    • Author(s)
      太田裕道
    • Organizer
      日本セラミックス協会東北北海道支部 第27回北海道地区セミナー2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Single Crystalline Film Growth of Layer Structured Oxides and Their Phonon Transports2019

    • Author(s)
      Hiromichi Ohta, Hai Jun Cho, Yuzhang Wu, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito
    • Organizer
      2019 MRS Fall Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] SrCoO2.5エピタキシャル薄膜の電気化学酸化と電子輸送特性2019

    • Author(s)
      楊 倩,Hai Jun Cho,Hyoungjeen Jeen,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 種々の基板上に作製したブラウンミラライト型SrCoO2.5エピタキシャル薄膜の熱電能2019

    • Author(s)
      楊 倩,Hai Jun Cho,Joonhyuk Lee, 馮 斌, 幾原雄一, Hyoungjeen Jeen,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of transport property reductions in epitaxial La-doped BaSnO3 films2019

    • Author(s)
      Hai Jun Cho, Bin Feng, Takaki Onozato, Mian Wei, Anup V. Sanchela, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 3000 S cm-1を超える高導電性深紫外透明酸化物半導体LaドープSrSnO32019

    • Author(s)
      魏 冕,Anup Sanchela,馮 斌, 幾原雄一, Hai Jun Cho, 太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アモルファスWOx(2.5 < x < 3)薄膜の光・電子・熱輸送2019

    • Author(s)
      キム ゴウン,ジョ ヘジュン,Yu-Miin Sheu,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 酸素欠損WOx(2.83 < x < 3)エピタキシャル薄膜の電子・熱輸送特性2019

    • Author(s)
      キム ゴウン,ジョ ヘジュン,馮斌,幾原雄一,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High and Low Thermal Conductivity Phase Boundary in SrTiO3-SrNbO3 Solid-Solution System2019

    • Author(s)
      Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Woosuck Shin, Woo Seok Choi, Myung Joon Han, Hiromichi Ohta
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sr1-xLaxTiO3全率固溶体エピタキシャル薄膜の熱電特性2019

    • Author(s)
      須郷堅雄,張 雨橋,ジョヘジュン,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 層状酸化物エピタキシャル薄膜の熱伝導率異方性2019

    • Author(s)
      高嶋佑伍,小野里尚記, ジョヘジュン,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 自然超格子酸化物InGaO3(ZnO)mの異方的熱輸送2019

    • Author(s)
      呉 宇璋,ジョヘジュン,馮 斌,三上祐史,申ウソク,幾原雄一,齊藤圭司,太田裕道
    • Organizer
      2019年 第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Electron and heat transport properties of La-doped BaSnO3 epitaxial films2019

    • Author(s)
      Hai Jun Cho, Bin Feng, Takaki Onozato, Mian Wei, Anup V. Sanchela, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      26th International Workshop on Oxide Electronics (iWOE26)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anomalous Thermopower Behaviour of Brownmillerite SrCoO2.5 Epitaxial Films2019

    • Author(s)
      Qian Yang, Hai Jun Cho, Hyoungjeen Jeen, Hiromichi Ohta
    • Organizer
      26th International Workshop on Oxide Electronics (iWOE26)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic Clarification of Electron and Heat Transports in Oxygen Deficient WOx - Comparison between Amorphous Films and Epitaxial Films -2019

    • Author(s)
      Gowoon Kim, Hai Jun Cho, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      TOEO-11
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New Deep-Ultraviolet Transparent Oxide Semiconductor, La-doped SrSnO32019

    • Author(s)
      Mian Wei, Anup V. Sanchela, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      TOEO-11
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transparent Oxide Semiconductor BaSnO3-SrSnO3 Solid-Solutions2019

    • Author(s)
      Hiromichi Ohta, Anup V. Sanchela
    • Organizer
      TOEO-11, Nara, Japan, October 7-9, 2019. (Oral)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 温度差を電気に変換する熱電材料としての層状コバルト酸化物2019

    • Author(s)
      高嶋佑伍, 小野里尚記, ジョヘジュン, 太田 裕道
    • Organizer
      第5回北海道大学部局横断シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] SrCoOx酸素スポンジの高速電気化学反応の巨視的可視化2019

    • Author(s)
      楊 倩, Hai Jun Cho, Hyoungjeen Jeen, 太田裕道
    • Organizer
      令和元年日本セラミックス協会 東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ブラウンミラライト型SrCoO2.5薄膜の異常熱電能2019

    • Author(s)
      楊 倩, ジョ ヘジュン, Joonhyuk Lee, 馮 斌, 幾原雄一, Hyoungjeen Jeen, 太田裕道
    • Organizer
      令和元年日本セラミックス協会 東北北海道支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 透明酸化物半導体BaSnO3-SrSnO3固溶体2019

    • Author(s)
      太田裕道, Anup V. Sanchela
    • Organizer
      令和元年日本セラミックス協会 東北北海道支部研究発表会, 新潟大学工学部, 新潟県新潟市, 2019年11月8日-9日(口頭発表)
    • Related Report
      2019 Annual Research Report
  • [Presentation] バンド絶縁体SrTiO3-モット絶縁体LaTiO3全率固溶体エピタキシャル薄膜の熱電特性2019

    • Author(s)
      須郷堅雄, 張 雨橋, ジョ・ヘジュン, 太田裕道
    • Organizer
      薄膜材料デバイス研究会 第16回研究集会 in 京都「新時代に向けた薄膜材料のデバイス技術」
    • Related Report
      2019 Annual Research Report
  • [Presentation] アモルファスSnO2透明薄膜トランジスタの熱電能電界変調2019

    • Author(s)
      梁 豆豆, 張 雨橋, ジョ・ヘジュン, 太田裕道
    • Organizer
      薄膜材料デバイス研究会 第16回研究集会 in 京都「新時代に向けた薄膜材料のデバイス技術」
    • Related Report
      2019 Annual Research Report
  • [Presentation] Flexible electrochromic transistor2019

    • Author(s)
      Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 9th Asia-Pacific Workshop on Widegap Semiconductors (APWS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] (Li, La)TiO3対応粒界における原子構造とイオン伝導特性2019

    • Author(s)
      佐々野駿,石川亮,太田裕道,柴田直哉,幾原雄一
    • Organizer
      第60回 電池討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High and Low Thermal Conductivity Phase Boundary in SrTiO3-SrNbO3 Solid-Solution System2019

    • Author(s)
      Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Woosuck Shin, Woo Seok Choi, Myung Joon Han, Hiromichi Ohta
    • Organizer
      2019 MRS Fall Meeting & Exhibit, Boston
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrical, optical and thermal transport properties of oxygen deficient amorphous WOx (2.5 < x < 3) films2019

    • Author(s)
      Gowoon Kim, Hai Jun Cho, Yu-Miin Sheu, Hiromichi Ohta
    • Organizer
      2019 MRS Fall Meeting & Exhibit
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electric field thermopower modulation analyses of high mobility transparent amorphous SnO2 thin film transistor2019

    • Author(s)
      Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic investigation of thermoelectric properties in Sr1-xLaxTiO3 solid-solutions2019

    • Author(s)
      Kenyu Sugo, Yuqiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and thermopower modulation of thin film transistor using deep-ultraviolet transparent oxide semiconductor as active layer2019

    • Author(s)
      Gong Lizhikun, Dou-dou Liang, Mian Wei, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Epitaxial film growth of a deep-ultraviolet transparent oxide semiconductor, La-doped SrSnO32019

    • Author(s)
      Mian Wei, Anup V. Sanchela, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Macroscopic visualization of fast electrochemical reaction of SrCoOx oxygen sponge2019

    • Author(s)
      Qian Yang, Hai Jun Cho, Hyoungjeen Jeen, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of heat treating on electronic and structural properties of lightly doped epitaxial LaxBa1-xSnO3 films2019

    • Author(s)
      Takashi Fujimoto, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal conductivity of layered cobalt oxide epitaxial films with different crystallographic orientation2019

    • Author(s)
      Yugo Takashima, Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal conductivity of InGaO3(ZnO)m (m = integer) natural superlattice2019

    • Author(s)
      Yuzhang Wu, Hai Jun Cho, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito, Hiromichi Ohta
    • Organizer
      The 20th RIES-HOKUDAI International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electric field thermopower modulation analyses of high mobility transparent amorphous SnO2 thin film transistor2019

    • Author(s)
      Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic investigation of thermoelectric properties in Sr1-xLaxTiO3 solid-solutions2019

    • Author(s)
      Kenyu Sugo, Yuqiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and thermopower modulation of thin film transistor using deep-ultraviolet transparent oxide semiconductor as active layer2019

    • Author(s)
      Lizhikun Gong, Dou-dou Liang, Mian Wei, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Epitaxial film growth of a deep-ultraviolet transparent oxide semiconductor, La-doped SrSnO32019

    • Author(s)
      Mian Wei, Anup V. Sanchela, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Macroscopic visualization of fast electrochemical reaction of SrCoOx oxygen sponge2019

    • Author(s)
      Qian Yang, Hai Jun Cho, Hyoungjeen Jeen, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of heat treating on electronic and structural properties of lightly doped epitaxial LaxBa1-xSnO3 films2019

    • Author(s)
      Takashi Fujimoto, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal conductivity of layered cobalt oxide epitaxial films with different crystallographic orientation2019

    • Author(s)
      Yugo Takashima, Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal conductivity of InGaO3(ZnO)m (m = integer) natural superlattice2019

    • Author(s)
      Yuzhang Wu, Hai Jun Cho, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito, Hiromichi Ohta
    • Organizer
      2019 International Symposium of Research Institute for Electronic Science (RIES), Hokkaido University & Center for Emergent Functional Matter Science (CEFMS)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of electrochromic transistor on flexible substrate2019

    • Author(s)
      Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High electrical conductivity exceeding ~3000 S cm-1 of a transparent oxide semiconductor, La-doped SrSnO32019

    • Author(s)
      Mian Wei, Anup V. Sanchela, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gate-tuned Thermoelectric Performances in Aligned Conducting Polymers2019

    • Author(s)
      Katsuya Watanabe, Kaito Kanahashi, Naoya Takekoshi, Hisaaki Tanaka, Hiroshi Ito, Hiromichi Ohta, Taishi Takenobu
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of thermal conductivity tensors using time-domain thermoreflectance2019

    • Author(s)
      H.J. Cho, G. Kim, T. Onozato, H. Jeen, H. Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electric field thermopower modulation of high-mobility SnO2 transparent thin film transistor2019

    • Author(s)
      Doudou Liang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and characterization of deep-ultraviolet transparent oxide semiconductor thin film transistors2019

    • Author(s)
      Lizhikun Gong, Dou-dou Liang, Mian Wei, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic Clarification of Electron and Heat Transports in Oxygen Deficient WOx2019

    • Author(s)
      G. Kim, H. J. Cho, B. Feng, Y. Ikuhara, H. Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of transport property reductions in epitaxial La-doped BaSnO3 films2019

    • Author(s)
      Hai Jun Cho, Bin Feng, Takaki Onozato, Mian Wei, Anup V. Sanchela, Yuichi Ikuhara, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic investigation of thermoelectric properties in Sr1-xLaxTiO3 solid-solution system2019

    • Author(s)
      Kenyu Sugo, Yuqiao Zhang, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermopower detection of electronic structure modulation of SrCoO2.5 film on lattice mismatched substrates2019

    • Author(s)
      Qian Yang, Joonhyuk Lee, Bin Feng, Yuichi Ikuhara, Gowoon Kim, Hai Jun Cho, Hyoungjeen Jeen, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A flexible electrochromic transistor under mechanical fatigue2019

    • Author(s)
      Takaki Onozato, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science, Sapporo, Japan, December 18th-20th, 2019.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropy of Thermal Conductivity for Epitaxial Films of Layered Cobalt Oxides, AxCoO2 (A = Li, Na, Ca, and Sr)2019

    • Author(s)
      Y. Takashima, T. Onazato, Y. Nezu, H.J. Cho, H. Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Zero contribution of conduction electrons in the thermal conductivity of a metallic conductor2019

    • Author(s)
      Y. Zhang, H.J. Cho, K. Sugo, M. Mikami, S. Woo, M.-C. Jung, Y.H. Zhuang, Y-M. Sheu, W. Shin, W.S. Choi, M.J. Han, H. Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phonon propagation competition across natural superlattice InGaO3(ZnO)m2019

    • Author(s)
      Y. Wu, H.J. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, K. Saito, H. Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New Deep-Ultraviolet Transparent Oxide Semiconductor, La-doped SrSnO32019

    • Author(s)
      Mian Wei, Anup V. Sanchela, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, Hiromichi Ohta
    • Organizer
      The 3rd Workshop on Functional Materials Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structure-function relationship in the A-site orderded perovskite CaCu3Ru4O122019

    • Author(s)
      I. Terasaki
    • Organizer
      Aalto Symposium on New Functional Materials, Otaniemi, 6-7 June 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Structure-function relationship in the A-site orderded perovskite CaCu3Ru4O122019

    • Author(s)
      I. Terasaki
    • Organizer
      NU-UoE JointDegree Workshop, Nagoya University, 1-3 July 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of High Quality Na0.5CoO2 Thick Film for a Planar-Shape Thermoelectric Device2019

    • Author(s)
      A. Tsuruta, M. Tanaka, M. Mikami, Y. Kinemuchi, W. Shin, Y. Masuda, I. Terasaki
    • Organizer
      MRS 2019 Fall Meeting, Boston, December 1-6, 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 廃熱から電気を生み出すセラミックスの発見2019

    • Author(s)
      寺崎一郎
    • Organizer
      村田学術財団授賞式記念講演, 京都, 2019年7月19日
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 日本熱電学会チュートリアル講演2019

    • Author(s)
      寺崎一郎
    • Organizer
      日本熱電学会, 名古屋工業大学, 2019年9月3-5日
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 日本熱電学会学術賞受賞講演2019

    • Author(s)
      寺崎一郎
    • Organizer
      日本熱電学会, 名古屋工業大学, 2019年9月3-5日
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Ca2RuO4における直流電下熱拡散率測定II2019

    • Author(s)
      川崎修史, 中村文彦, 中埜彰俊, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会 2019年秋季大会 岐阜大学 2019年9月10~13日
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ca2RuO4の交流電流における非線形伝導2019

    • Author(s)
      佐野五十鈴, 中村文彦, 中埜彰俊, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会 2019年秋季大会 岐阜大学 2019年9月10~13日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 励起子絶縁体候補物質Ta2NiSe5における非線形伝導現象の観測2019

    • Author(s)
      中埜彰俊, 丸岡うらら, 谷口博基, 寺崎一郎
    • Organizer
      日本物理学会 2019年秋季大会 岐阜大学 2019年9月10~13日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 室温強磁性酸化物Sr3.1Y0.9Co4O10.5の元素置換による磁気転移制御2019

    • Author(s)
      川崎修史, 鶴田彰宏, 三上祐史, 杵鞭義明, 増田佳丈, 藤田麻哉, 寺崎一郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学, 2019年9月18~21日
    • Related Report
      2019 Annual Research Report
  • [Presentation] スクリーン印刷で作製したNa0.5CoO2厚膜の熱電変換特性2019

    • Author(s)
      鶴田彰宏, 田中未紀, 三上祐史, 杵鞭義明, 申ウソク, 増田佳丈, 寺崎一郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学, 2019年9月18~21日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 低エネルギー逆光電子分光によるTa2NiSe5の伝導帯の直接観測2019

    • Author(s)
      川村啓太, 佐藤晴輝, 折尾響, 杉本高大, 太田幸則, 大槻太毅, 吉田鉄平, 丸岡うらら, 中埜彰俊, 寺崎一郎, 吉田弘幸
    • Organizer
      日本物理学会 2020年秋季大会 オンライン開催 2019年9月8~11日
    • Related Report
      2019 Annual Research Report
  • [Presentation] Weak and strong ETH from the clustering property2019

    • Author(s)
      K. Saito
    • Organizer
      Thermlization, many body localization and hydrodynamics, ICTS, Bangalore, India (Nov.11-29 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 第11 章 酸化物エレクトロクロミック材料を用いたメモリデバイスの開発「エレクトロクロミックデバイスの開発最前線」樋口昌芳 監修2019

    • Author(s)
      太田裕道, 小野里尚記
    • Total Pages
      216
    • Publisher
      シーエムシー出版
    • ISBN
      9784781314235
    • Related Report
      2019 Annual Research Report
  • [Book] Thermoelectric Thin Films: Materials and Devices2019

    • Author(s)
      Hiromichi Ohta
    • Total Pages
      211
    • Publisher
      Springer
    • Related Report
      2019 Annual Research Report
  • [Book] 2D Nanomaterials for Energy Applications (1st Edition)2019

    • Author(s)
      Yu-qiao Zhang and Hiromichi Ohta
    • Total Pages
      352
    • Publisher
      Elsevier
    • Related Report
      2019 Annual Research Report
  • [Remarks] 北海道大学 電子科学研究所 太田裕道研究室

    • URL

      https://functfilm.es.hokudai.ac.jp/

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Remarks] 機能性物質物性研究室(V研究室)

    • URL

      http://vlab-nu.jp/member/terasaki.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] Keiji Saito group

    • URL

      https://sites.google.com/view/keijisaito-group

    • Related Report
      2020 Annual Research Report
  • [Remarks] 情報記憶素子の仕組みをのぞきみた!

    • URL

      https://www.hokudai.ac.jp/news/2019/11/post-587.html

    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] Electrochromic Transistor, Electronic Curtain, Information Display/Storage Device, and Anti-Glare Mirror2019

    • Inventor(s)
      Hiromichi Ohta, Takaki Onozato
    • Industrial Property Rights Holder
      Hokkaido University
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] エレクトロクロミックトランジスタ、電子カーテン、情報表示記憶装置および防眩ミラー2019

    • Inventor(s)
      太田裕道, 小野里尚記
    • Industrial Property Rights Holder
      北海道大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report
    • Overseas

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Published: 2019-07-04   Modified: 2022-12-28  

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