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Creation of novel 2D nanoplatelets with high thermoelectric performance due to extremely low thermal conductivity and low dimensionality

Research Project

Project/Area Number 20H02576
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionTokai University

Principal Investigator

Takashiri Masayuki  東海大学, 工学部, 教授 (50631818)

Co-Investigator(Kenkyū-buntansha) 田中 三郎  日本大学, 工学部, 准教授 (30713127)
宮崎 康次  九州工業大学, 大学院工学研究院, 特任教授 (70315159)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywords熱伝導率 / フォノン / 低次元材料 / 結晶成長 / ビスマステルル / 無電解めっき / ナノプレート / ナノ粒子 / テルル化ビスマス / ソルボサーマル合成 / 熱電物性 / ゼーベック係数 / 電気伝導率 / 熱拡散率 / 熱輸送 / 熱電変換材料 / ソルボサーマル / 熱電変換 / 2次元ナノプレート / 格子熱伝導率
Outline of Research at the Start

申請者は材料に室温付近で現状最も高い熱電性能を示すビスマステルル系材料を使用し,材料の低次元化・ナノ構造化・欠陥制御を駆使することで,極限までこの材料の性能を高める.具体的には新奇形状の2次元ナノプレートをソルボサーマル法で創出する.ナノプレートに種々の構造(ナノ孔,ヘテロ界面など)を付加することで,①2次元効果によるゼーベック係数の増強,②フォノン粒子の界面散乱による格子熱伝導率の低減と③フォノン波の局所共鳴によるさらなる格子熱伝導率の低減を複合化させることで材料性能を極限まで高める.なお,本研究の方法はビスマステルル系材料以外の数多くの熱電変換材料にも適用できる極めて有効な方法である.

Outline of Final Research Achievements

Low-dimensional heterostructures of nanoplates decorated with nanoparticles were fabricated to reduce the lattice thermal conductivity of low-dimensional thermoelectric materials. Regular hexagonal single-crystal bismuth-tellurium nanoplates were fabricated by solvothermal synthesis. Tin nanoparticles were then decorated on the surface of the bismuth-tellurium nanoplates by electroless plating using various concentrations of tin precursors. Surface morphology and composition analysis confirmed the presence of tin on the nanoplatelet surface. The in-plane lattice thermal conductivity of the tin nanoparticle decorated nanoplates decreased with increasing tin concentration. At a tin concentration of 90 mM, the lattice thermal conductivity was 1.3 W/(m-K), approximately 30% lower than that of the nanoplate without electroless plating.

Academic Significance and Societal Importance of the Research Achievements

ナノプレートのような低次元材料は、ユニークな特性を持っている。熱電材料は、低次元効果を利用して格子熱伝導率を下げることができるため、この特性の恩恵を最も受けているものの一つである。本研究では、ナノプレート表面にスズを蒸着することで、フォノンの散乱やフォノン波の抑制により、フォノンの流れが減少し、格子熱伝導率を低減させることに成功した。これらの知見は、低次元ヘテロ構造材料の熱的特性を制御するための道を開くものである。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020 Other

All Journal Article (16 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 16 results,  Open Access: 5 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Determining phonon transport properties of bismuth telluride thin films with extremely small grain size using nanoindentation and 3w method2023

    • Author(s)
      Masataka Hase, Hiroyasu Kato, Hiroshi Murotani, Masayuki Takashiri
    • Journal Title

      Appl. Phys. Express

      Volume: 16 Issue: 1 Pages: 015004-015004

    • DOI

      10.35848/1882-0786/acae6b

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High thermoelectric performance of flexible nanocomposite films based on Bi2Te3 nanoplates and carbon nanotubes selected using ultracentrifugation2023

    • Author(s)
      Tomoyuki Chiba1, Hayato Yabuki1, Masayuki Takashiri
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 3010-3010

    • DOI

      10.1038/s41598-023-30175-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental study on the effect of impurity concentration on phonon and electronic transport properties of single-crystal silicon2023

    • Author(s)
      M. Hase, D. Tanisawa, O. Norimasa, R. Kamemura, S. Miyake, M. Takashiri
    • Journal Title

      Results in Physics

      Volume: 47 Pages: 106356-106356

    • DOI

      10.1016/j.rinp.2023.106356

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sb2Te3 nanoparticle-containing single-walled carbon nanotube films coated with Sb2Te3 electrodeposited layers for thermoelectric applications2023

    • Author(s)
      Rikuo Eguchi, Koki Hoshino, Masayuki Takashiri
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 5783-5783

    • DOI

      10.1038/s41598-023-33022-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In- and cross-plane thermoelectric properties of oriented Bi2Te3 thin films electrodeposited on an insulating substrate for thermoelectric applications2022

    • Author(s)
      Oga Norimasa, Masayuki Takashiri
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 899 Pages: 163317-163317

    • DOI

      10.1016/j.jallcom.2021.162889

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Se incorporation on thermoelectric properties of Bi2(SexTe1-x)3 alloys2021

    • Author(s)
      Yuichi Ota, Hiromasa Namiki, Hideo Yamazaki, Ryota Konagaya, Susumu Yonezawa, Takafumi Komori, Masayuki Takashiri
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 60 Issue: 7 Pages: 070910-070910

    • DOI

      10.35848/1347-4065/ac103a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of phase transition from critical nucleus to Bi2Te3 nanoplate based on screw dislocation-driven spiral growth by solvothermal synthesis2021

    • Author(s)
      Hideo Yamazaki, Rikuo Eguchi, Masayuki Takashiri
    • Journal Title

      Crystal Research and Technology

      Volume: 56 Issue: 11 Pages: 2100153-2100153

    • DOI

      10.1002/crat.202100153

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Determination of group velocity based on nanoindentation using Si and SiO2/Si wafers2021

    • Author(s)
      Oga Norimasa, Masataka Hase, Ryotaro Mori, Mai Hayamizu, Hiroshi Murotani, Koji Miyazaki, Masayuki Takashiri
    • Journal Title

      AIP Advances

      Volume: 11 Issue: 7 Pages: 075216-075216

    • DOI

      10.1063/5.0055581

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phonon transport properties depending on crystal orientation analyzed by nanoindentation using single-crystal silicon wafers2021

    • Author(s)
      O. Norimasa, M. Hase, M. Hayamizu, S. Nagata, S. Tanaka, S. Miyake, T. Nishi, H. Murotani, M. Takashiri
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 12 Pages: 126502-126502

    • DOI

      10.35848/1882-0786/ac3544

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Thermoelectric Performance of Bi2Te3 Films as a Function of Temperature Increase Rate during Heat Treatment2021

    • Author(s)
      Oga Norimasa, Takuya Kurokawa, Rikuo Eguchi and Masayuki Takashiri
    • Journal Title

      Coatings

      Volume: 11 Issue: 1 Pages: 38-38

    • DOI

      10.3390/coatings11010038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Solvothermal synthesis of n-type Bi2(SexTe1-x)3 nanoplates for high-performance thermoelectric thin films on flexible substrates2020

    • Author(s)
      Yuki Kimura, Ryotaro Mori, Susumu Yonezawa, Hayato Yabuki, Hiromasa Namiki, Yuichi Ota & Masayuki Takashiri
    • Journal Title

      Scientific reports

      Volume: 10 Issue: 1 Pages: 6315-6315

    • DOI

      10.1038/s41598-020-63374-0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Influences of substrate types and heat treatment conditions on structural and thermoelectric properties of nanocrystalline Bi2Te3 thin films formed by DC magnetron sputtering2020

    • Author(s)
      Takuya Kurokawa, Ryotaro Mori, Oga Norimasa, Tomoyuki Chiba, Rikuo Eguchi, MasayukiTakashiri
    • Journal Title

      Vacuum

      Volume: 179 Pages: 109535-109535

    • DOI

      10.1016/j.vacuum.2020.109535

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimized structure of tubular thermoelectric generators using n-type Bi2Te3 and p-type Sb2Te3 thin films on flexible substrate for energy harvesting2020

    • Author(s)
      Akihiro Kobayashi, Ryota Konagaya, Saburo Tanaka, Masayuki Takashiri
    • Journal Title

      Sensors and Actuators A

      Volume: 313 Pages: 112199-112199

    • DOI

      10.1016/j.sna.2020.112199

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Self-powered broadband photo-detection and persistent energy generation with junction-free strained Bi2Te3 thin films2020

    • Author(s)
      B. Lorenzi, Y. Tsurimaki, A. Kobayashi, M. Takashiri, S. V. Boriskina
    • Journal Title

      Opt. Express

      Volume: 28 Issue: 19 Pages: 27644-27656

    • DOI

      10.1364/oe.399040

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced thermoelectric properties of electrodeposited Bi2Te3 thin films using TiN diffusion barrier layer on a stainless-steel substrate and thermal annealing2020

    • Author(s)
      R. Eguchi, H. Yamamuro, M. Takashiri
    • Journal Title

      Thin Solid Films

      Volume: 714 Pages: 138356-138356

    • DOI

      10.1016/j.tsf.2020.138356

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flexible thermoelectric films formed using integrated nanocomposites with single-wall carbon nanotubes and Bi2Te3 nanoplates via solvothermal synthesis2020

    • Author(s)
      H. Yabuki, S. Yonezawa, R. Eguchi, M. Takashiri
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 17031-17031

    • DOI

      10.1038/s41598-020-73808-4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] マイクロ波加熱を用いたBi2Te3薄膜に及ぼす熱処理の影響2022

    • Author(s)
      仲川晃平、アブディカルヤ イプトゥ、浅野貴行、小森貴文、高尻雅之、光藤誠太郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 無電解めっきを用いたBi2Te3ナノプレートへの金属装飾2022

    • Author(s)
      小橋海斗、高尻雅之
    • Organizer
      第34回SASシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Bi2Te3薄膜における熱伝導率およびフォノン平均自由行程の結晶粒径依存性評価2022

    • Author(s)
      長谷匡高、加藤寛康、室谷祐志、高尻雅之
    • Organizer
      第19回日本熱電学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Si単結晶におけるフォノン・電子平均自由行程のキャリア濃度依存性評価2022

    • Author(s)
      長谷匡高、谷澤大樹、永田將、西剛史、三宅修吾、高尻雅之
    • Organizer
      日本機械学会 2022年度年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アモルファスSi 薄膜のナノインデンテーション法による熱輸送特性評価2022

    • Author(s)
      谷澤大樹、長谷匡高、則正雄賀、山口麻人、室谷裕志、高尻雅之
    • Organizer
      第19回日本熱電学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Metal decoration on bismuth telluride nanoplates using electroless plating2021

    • Author(s)
      H. Yamazaki, M. Takashiri
    • Organizer
      MNC2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal conductivity of layered Bi2Te3 nanoplates2021

    • Author(s)
      M. Takashiri
    • Organizer
      M. Takashiri TCTFN2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of thermal transport properties of single crystal silicon with different crystal orientation by nanoindentation method2021

    • Author(s)
      O. Norimasa, M. Hase, M. Hayamizu, H. Murotani, M. Takashiri
    • Organizer
      MNC2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ナノインデンテーション法を用いたシリコンの熱輸送特性の測定2021

    • Author(s)
      則正雄賀、長谷匡高、速水舞、室谷裕志、宮崎康次、高尻雅之
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 環境エネルギー材料研究室

    • URL

      http://www.er.u-tokai.ac.jp/takashiri/index.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 東海大学工学部材料科学科第2研究室「環境エネルギー材料研究室」

    • URL

      http://www.er.u-tokai.ac.jp/takashiri/index.html

    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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