Thermoelectric properties and intermolecular conductive mechanism of conjugated polymers

• Project/Area Number: 21560735
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: National Institute for Materials Science
• Principal Investigator: SHINOHARA Yoshikazu 独立行政法人物質・材料研究機構, 電池材料ユニット, グループリーダー (70343853)
• Co-Investigator(Kenkyū-buntansha): ISODA Yukihiro 独立行政法人物質・材料研究機構, 電池材料ユニット, 主任研究員 (80354140) ; 今井 義雄 独立行政法人物質・材料研究機構, 環境・エネルギー材料萌芽ラボ, 主幹研究員 (40354138)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 熱・エネルギー材料 / 熱電エネルギー変換 / 高分子 / 熱電特性 / ポリチオフェン

Research Abstract

The purpose of this study is to clarify some determining factors of conductive mechanisms of polythiophene series and the effect of the mechanism on the thermoelectric properties. Polythiophenes with different molecular weight of side chains were synthesized by oxidative polymerization and electrolytic polymerization. The results are as follows : 1) polythiophenes with no side chain showed a variable range hopping due to short distance between polythiophene main chains. 2) poly-alkyltiohpenes showed nearest neighbor distance hopping. 3) polythiophene series change the conductive mechanism accompanied with the distance between the main chains. 4) thermoelectric properties are closed related to the distance between the main chains and the density of main chain in an unit volume.

Research Products

• [Journal Article] Thermoelectric Properties and Conduction Mechanism of Conductive Polythiophenes (2011)
  • Author(s): Y. Shinohara、Y. Isoda、K. Hiraishi、A. Masuhara、H. Oikawa
  • Journal Title: INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY Volume: 42 Pages: 66-73
  • Peer Reviewed
• [Journal Article] Conference Reports on the 9th International Conference on EcoBalance (2011)
  • Author(s): Y. Shinohara
  • Journal Title: INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT Volume: 16 Pages: 478-487
  • Peer Reviewed
• [Journal Article] Thermoelectric Properties and Conduction Mevhanism of Conductive Polythiophenes (2011)
  • Author(s): Y.Shinohara, Y.Isoda, K.Hiraishi, A.Masuhara, H.Oikawa
  • Journal Title: INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY Volume: 42 Pages: 66-73
  • Peer Reviewed
• [Journal Article] 傾斜構造を有する熱電エネルギー変換材料 (2010)
  • Author(s): 篠原嘉一
  • Journal Title: MATERIALS SCIENCE AND TECHNOLOGY Volume: 47 Pages: 152-156
  • NAID: 10026612581
  • Peer Reviewed
• [Journal Article] 導電性高分子の熱電特性と伝導機構について (2010)
  • Author(s): 篠原嘉一、磯田幸宏
  • Journal Title: 傾斜機能材料論文集 Volume: 24 Pages: 130-133
  • Peer Reviewed
• [Journal Article] Carrier Conduction between Main Chains on Thermoelectric Properties of Polythiophenes (2009)
  • Author(s): Y. Shinohara、Y. Isoda、Y. Imai、K. Hiraishi、H. Oikawa、H. Nakanishi
  • Journal Title: Proc. 26^<th> International Conference on Thermoelectrics Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] 有機系熱電材料 (2009)
  • Author(s): 篠原嘉一
  • Journal Title: 機能材料 Volume: 29 Pages: 38-42
  • Peer Reviewed
• [Journal Article] Evaluation of Thermoelectric Properties of Polythiophene Films Synthesized by Electrolytic Polymerization (2009)
  • Author(s): H. Hiraishi、A. Masihara、H. Nakanishi、H. Oikawa、Y. Shinohara
  • Journal Title: JAPANESE JOURNAL OF APPLIED PHYSICS Volume: 48
  • NAID: 40016664152
  • Peer Reviewed
• [Journal Article] Carreir Conduction between Main Chains on Thermoelectric Properties of Polythiophenes (2009)
  • Author(s): Y.Shinohara, Y.Isoda, Y.Imai, K.Hiraishi, H.Oikawa, H.Nakanishi
  • Journal Title: Proc.26^<th> International Conference on Thermoelectrics (CD-ROM)
  • Peer Reviewed
• [Journal Article] 有機系熱電材料 (2009)
  • Author(s): 篠原嘉一
  • Journal Title: 機能材料 29 Pages: 38-42
  • Peer Reviewed
• [Journal Article] Evaluation of Thermoelectric Properties of Polythiophene Films Synthesized by Electrolytic Polymerization (2009)
  • Author(s): H.Hiraishi, A.Masihara, H.Nakanishi, H.Oikawa, Y.Shinohara
  • Journal Title: JAPANESE JOURNAL OF APPLIED PHYSICS 48
  • NAID: 40016664152
  • Peer Reviewed
• [Presentation] Research Activities on Thermoelectric Materials at NIMS in Japan (2011)
  • Author(s): Y. Shinohara
  • Organizer: IMM特別講演会
  • Place of Presentation: IMM,マドリッド、スペイン
  • Year and Date: 2011-03-03
• [Presentation] Research Activities on Thermoelectric Materials at NIMS in Japan (2011)
  • Author(s): Y.Shinohara
  • Organizer: IMM特別講演会
  • Place of Presentation: IMM,マドリッド(スペイン)
  • Year and Date: 2011-03-03
• [Presentation] 日本社会におけるアカデミーの役割 (2011)
  • Author(s): 篠原嘉一
  • Organizer: 第22回傾斜機能材料シンポジウム
  • Place of Presentation: 北九州国際会議場、福岡、日本
• [Presentation] 日本社会におけるアカデミーの役割 (2011)
  • Author(s): 篠原嘉一
  • Organizer: 第22回傾斜機能材料シンポジウム
  • Place of Presentation: 北九州国際会議場
• [Presentation] 有機熱電変換材料の現状と今後の展望 (2010)
  • Author(s): 篠原嘉一
  • Organizer: ナノファイバー学会
  • Place of Presentation: ナノファイバー学会
  • Year and Date: 2010-10-18
• [Presentation] 有機熱電変換材料の現状と今後の展望 (2010)
  • Author(s): 篠原嘉一
  • Organizer: ナノファイバー学会
  • Place of Presentation: 東京工業大学(東京都)
  • Year and Date: 2010-10-18
• [Presentation] 熱電変換材料の高性能化へのアプローチ (2010)
  • Author(s): 篠原嘉一
  • Organizer: R & Dセミナー
  • Place of Presentation: R & Dセミナー
  • Year and Date: 2010-05-26
• [Presentation] 熱電変換材料の高性能化へのアプローチ (2010)
  • Author(s): 篠原嘉一
  • Organizer: R&D支援セミナー
  • Place of Presentation: Time24ビル(東京都)
  • Year and Date: 2010-05-26
• [Presentation] 発電用熱電材料の開発 (2010)
  • Author(s): 篠原嘉一、磯田幸宏
  • Organizer: 2010国際ナノテクノロジー総合展
  • Place of Presentation: 東京ビッグサイト、東京、日本
• [Presentation] 低中温排熱の有効利用を可能にする熱電エネルギー変換材料研究 (2010)
  • Author(s): 篠原嘉一、磯田幸宏
  • Organizer: TXテクノロジー・ショーケース
  • Place of Presentation: 筑波大学、つくば、日本
• [Presentation] 低中温排熱の有効利用を可能にする熱電エネルギー変換材料研究 (2010)
  • Author(s): 篠原嘉一、磯田幸宏
  • Organizer: TXテクノロジー・ショーケース
  • Place of Presentation: 筑波大学(つくば市)
• [Presentation] 発電用熱電材料の開発 (2010)
  • Author(s): 篠原嘉一、磯田幸宏
  • Organizer: 2010国際ナノテクノロジー総合展
  • Place of Presentation: 東京ビッグサイト(東京都)
• [Presentation] Thermoelectric Properties and Conduction Mechanism of Conductive Polythiophenes (2009)
  • Author(s): Y. Sinohara
  • Organizer: 第9回エコマテリアル国際会議
  • Place of Presentation: 京阪奈プラザ、京都、日本
• [Presentation] Thermoelectric Properties and Conduction Mechanism of Conductive Polythiophenes (2009)
  • Author(s): Y.Shinohara
  • Organizer: 第9回エコマテリアル国際会議
  • Place of Presentation: 京阪奈プラザ(京都府)