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Thermoelectric properties of thiophene dendrimers controlled by quantum degeneracy

Research Project

Project/Area Number 19H02608
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 29030:Applied condensed matter physics-related
Research InstitutionKobe University

Principal Investigator

Koshiba Yasuko  神戸大学, 工学研究科, 助手 (70243326)

Co-Investigator(Kenkyū-buntansha) 石田 謙司  神戸大学, 工学研究科, 教授 (20303860)
森 敦紀  神戸大学, 先端膜工学研究センター, 教授 (90210111)
福島 達也  神戸大学, 工学研究科, 講師 (70705392)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Keywordsチオフェンデンドリマー / 熱電変換 / 有機半導体
Outline of Research at the Start

本研究では、しなやかな有機熱電変換材料を用いたエナジーハーベスター創製に向け、π軌道の縮退を変化させたオリゴチオフェンデンドリマーに着目し、その熱電変換特性を評価し、分子構造、特に分子の対称性と熱電変換特性との相関を明らかにする。種々のオリゴチオフェンデンドリマーを合成し、熱電変換特性向上に向けてドーピングによりキャリア濃度の制御を試みる。熱電特性評価の結果を分子設計にフィードバックし、最終的に量子縮退制御したオリゴチオフェンデンドリマー薄膜を用いて熱電変換特性の向上をめざす。

Outline of Final Research Achievements

Thermoelectric (TE) generation is a technology based on the Seebeck effect. The TE voltage is proportional to temperature difference, and waste heat is converted into electrical energy. In this study, we focused on the organic TE materials because of their flexibility and light weight, with a view to using them in contact with the human body. We synthesized two types of oligothiophene dendrimers with different symmetry of molecular structures, as a new TE material; and investigated their doping methods and TE properties. The doped thiophene dendrimer with higher symmetrical structure and and degeneracy of the energy levels exhibited large Seebeck coefficient.

Academic Significance and Societal Importance of the Research Achievements

本研究では熱電変換材料として新規にチオフェン環が枝分かれした構造をもつチオフェンデンドリマーを取り上げ、その熱電変換特性を初めて報告した。また、チオフェンデンドリマーの分子対称性・軌道縮退性とゼーベック係数との相関関係を明らかにし、一般的な金属においてゼーベック係数はフェルミ準位における状態密度の傾きに比例するというMottの理論が有機半導体においても適用できるかについて検証することができた。新規有機熱電変換材料の分子設計に関する知見を得ることができた。本研究の成果は創エネ技術に貢献するものと考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (35 results)

All 2022 2021 2020 2019 Other

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (20 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (1 results) Remarks (5 results)

  • [Journal Article] Dipole switching dynamics in P(VDF-TrFE) film revealed by in-situ polarization switching and infrared spectroscopy measurements with high-time resolution2022

    • Author(s)
      Kohki Uneda, Shohei Horike, Yasuko Koshiba, Kenji Ishida
    • Journal Title

      Polymer

      Volume: 249 Pages: 124822-124822

    • DOI

      10.1016/j.polymer.2022.124822

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation mechanism of ferroelectric poly (vinylidene fluoride-trifluoroethylene) copolymers with in-plane dipole alignment under low electric field from melt and its SPR based pyroelectric sensor2021

    • Author(s)
      Yohei Sutani, Yasuko Koshiba, Tatsuya Fukushima, Kenji Ishida
    • Journal Title

      Polymer

      Volume: vol. 228 Pages: 123904-123904

    • DOI

      10.1016/j.polymer.2021.123904

    • NAID

      120007124110

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ジパラキシリレンの真空中での蒸発挙動に関する研2021

    • Author(s)
      石田謙司, 山田萌菜美, 小柴康子, 福島達也
    • Journal Title

      応用物理学会 有機分子・バイオエレクトロニクス分科会誌:M&BE

      Volume: 32 Pages: 78-83

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Thermoelectric thiophene dendrimers with large Seebeck coefficients2020

    • Author(s)
      Oki Kota、Horike Shohei、Yamaguchi Mana、Takechi Chikayo、Koshiba Yasuko、Fukushima Tatsuya、Mori Atsunori、Ishida Kenji
    • Journal Title

      Molecular Systems Design & Engineering

      Volume: 5 Issue: 4 Pages: 809-814

    • DOI

      10.1039/d0me00017e

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formal preparation of regioregular and alternating thiophene-iophene copolymers bearing different substituents2020

    • Author(s)
      Atsunori Mori, Keisuke Fujita, Chihiro Kubota, Toyoko Suzuki, Kentaro Okano, Takuya Matsumoto, Takashi Nishino, and Masaki Horie
    • Journal Title

      Beilstein J. Org. Chem.

      Volume: 16 Pages: 317-324

    • DOI

      10.3762/bjoc.16.31

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thermally-induced self-doping of π-conjugated polymers bearing a pendant neopentyl sulfonate group2020

    • Author(s)
      Atsunori Mori, Chihiro Kubota, Keisuke Fujita, Masayasu Hayashi, Tadayuki Ogura, Toyoko Suzuki, Kentaro Okano, Masahiro Funahashi, Masaki Horie
    • Journal Title

      Macromolecules

      Volume: 53 Issue: 4 Pages: 1171-1179

    • DOI

      10.1021/acs.macromol.9b02554

    • NAID

      120006826784

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dehalogenative or Deprotonative? The Preparation Pathway to the Organometallic Monomer of Transition Metal-Catalyzed Catalyst-Transfer-Type Polymerization of Thiophene Derivatives2020

    • Author(s)
      Yushin Shibuya and Atsunori Mori
    • Journal Title

      Chem. Eur. J.

      Volume: 26 Issue: 31 Pages: 6976-6987

    • DOI

      10.1002/chem.201905653

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of poly(3,4-ethylenedioxythiophene) by vapor-phase polymerization at the interface between 3,4-ethylenedioxythiophene vapor and oxidant melt2019

    • Author(s)
      Yasuko Koshiba, Mana Hirai, Shohei Horike, Tatsuya Fukushima, Kenji Ishida
    • Journal Title

      Molecular Crystal and Liquid Crystals

      Volume: 688 Pages: 53-59

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermophysical properties of the parylene C dimer under vacuum2019

    • Author(s)
      YAMADA Monamie、KOSHIBA Yasuko、HORIKE Shohei、FUKUSHIMA Tatsuya、ISHIDA Kenji
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: SD Pages: SDDA15-SDDA15

    • DOI

      10.7567/1347-4065/ab5919

    • NAID

      120006877486

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 真空下熱重量測定による鎖状アルカン蒸発挙動の鎖長依存性評価2022

    • Author(s)
      髙橋大樹,堀家匠平, 小柴康子, 石田謙司
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Improvement of thermoelectric properties of chemically-doped thiophene dendrimer with carbon nanotube2021

    • Author(s)
      Yasuko Koshiba, Kota Oki, Shohei Horike, Atsunori Mori, Kenji Ishida
    • Organizer
      2021 KJF International Conference on Organic Materials for Electronics and Photonics : KJF-ICOMEP 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formataion of pn-junction phthalocyanine nanorods and I-V measurement using Conductive AFM2021

    • Author(s)
      Kenta Higashida, Iori Sugimoto, Yasuko koshiba, and Kenji Ishida
    • Organizer
      2021 KJF International Conference on Organic Materials for Electronics and Photonics : KJF-ICOMEP 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ジパラキシリレンの真空中での蒸発挙動に関する研究2021

    • Author(s)
      石田謙司
    • Organizer
      応用物理学会 有機分子・バイオエレクトロニクス分科会 研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 樹状分子の空間対称性を活用した熱電変換分子の創出2021

    • Author(s)
      石田謙司
    • Organizer
      神戸大学 新技術説明会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 有機・高分子材料を用いた環境発電2021

    • Author(s)
      石田謙司
    • Organizer
      第52回中部化学関係学協会支部連合秋季大会(静岡)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 量子縮退制御したチオフェンデンドリマーの合成と熱電変換特性2021

    • Author(s)
      小柴康子, 隠岐晃太 , 堀家匠平, 森敦紀 , 石田謙司
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 導電性高分子とコンポジット化したチオフェンデドリマーの熱電変換特性2021

    • Author(s)
      三木佑一郎, 小柴康子, 堀家匠平, 福島達也, 森敦紀, 石田謙司
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] pn接合フタロシアニンナノロッド作製とAFMによる局所電気特性評価2021

    • Author(s)
      東田 憲汰 , 小柴 康子 , 福島 達也 , 石田 謙司
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 真空熱重量測定における蒸発係数αの基礎検証2021

    • Author(s)
      山田萌菜美 , 小柴康子, 福島達也 , 石田謙司
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] チオフェンデンドリマーへの化学ドーピングと巨大ゼーベック係数2020

    • Author(s)
      小柴康子・隠岐晃太・堀家匠平・山口真奈・武智恭世・福島達也・森敦紀・石田謙司
    • Organizer
      第69回高分子学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 半導体型 CNT/強誘電ポリマー積層膜の分極制御と熱電変換特性2020

    • Author(s)
      山崎 亮太 ,堀家 匠平 , 小柴 康子 , 福島 達也 , 石田 謙司
    • Organizer
      第69回高分子学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] チオフェンデンドリマーへの化学ドーピングと熱電変換特性2020

    • Author(s)
      小柴康子・隠岐晃太・堀家匠平・山口真奈・武智恭世・福島達也・森敦紀・石田謙司
    • Organizer
      薄膜材料デバイス研究会 第17回研究集会「薄膜デバイスの原点」
    • Related Report
      2020 Annual Research Report
  • [Presentation] ニッケル触媒によるポリ(1.4-フェニレン)合成における二座ホスフィン配位子の効果2020

    • Author(s)
      須佐見幸生,渋谷有信,岡野健太郎,森敦紀
    • Organizer
      日本化学会第100回春季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Structure- and Functionality-based Molecular Design of Heteroaromatic Compounds2020

    • Author(s)
      Atsunori Mori
    • Organizer
      日本化学会第100回春季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 半導体型SWCNT熱電変換特性に対する分極場ドーピング機構の解明2020

    • Author(s)
      山崎 亮太,堀家 匠平, 小柴 康子, 福島 達也, 石田 謙司
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Formation of p-n junction nanorods by heteroepitaxial growth of phthalocyanine2019

    • Author(s)
      Yasuko Koshiba Iori Sugimoto Shohei Horike Tatsuya Fukushima Kenji Ishida
    • Organizer
      10th International Conference on Molecular Electronics & BioElectronics (M&BE10)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Polarity Tuning of Semiconducting Single-walled Carbon Nanotube by Dipole Field of Ferroelectric Polymer for Thermoelectric Conversion2019

    • Author(s)
      7.Ryota Yamasaki, Shohei Horike, Yasuko Koshiba, Tatsuya Fukushima and Kenji Ishida
    • Organizer
      2019 International Conference on Solid State Devices and Materials(SSDM2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large thermopowers of chemically-doped thiophene dendrimers2019

    • Author(s)
      12.Kota Oki, Shohei Horike, Mana Yamaguchi, Chikayo Takechi, Yasuko Koshiba, Tatsuya Fukushima, Atsunori Mori, Kenji Ishida,
    • Organizer
      CEMSupra2019 (CEMS International Symposium on Supramolecular Chemistry and Functional Materials 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有機強誘電体分極場を用いた半導体型単層カーボンナノチューブのp/n 極性制御と熱電変換特性2019

    • Author(s)
      山崎 亮太,堀家 匠平, 小柴 康子, 福島 達也, 石田 謙司
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Book] 直接的芳香族カップリング反応の設計と応用 17章 直接アリール化によるオリゴ及びポリチオフェン類の合成(分担執筆)2019

    • Author(s)
      森 敦紀
    • Total Pages
      9
    • Publisher
      シーエムシー出版
    • ISBN
      9784781314211
    • Related Report
      2019 Annual Research Report
  • [Remarks] 神戸大学大学院工学研究科応用化学専攻物質物理化学研究室

    • URL

      https://www.research.kobe-u.ac.jp/eng-cx1/index.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 神戸大学大学院工学研究科応用化学専攻物質物理化学研究室

    • URL

      http://www.research.kobe-u.ac.jp/eng-cx1/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 神戸大学大学院工学研究科応用化学専攻反応有機化学研究室

    • URL

      http://www2.kobe-u.ac.jp/~amori/home/index.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] 神戸大学大学院応用化学専攻物質物理化学研究室

    • URL

      http://www.research.kobe-u.ac.jp/eng-cx1/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 神戸大学大学院応用化学専攻反応有機化学研究室

    • URL

      http://www2.kobe-u.ac.jp/~amori/home/index.html

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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