Search for thermoelectromotive force of thin/bulk interfacial structured film comprised of only single-walled carbon nanotubes

2012 Fiscal Year Final Research Report

• Project/Area Number: 23656419
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: SATO Yoshinori 東北大学, 大学院・環境科学研究科, 准教授 (30374995)
• Co-Investigator(Kenkyū-buntansha): TOHJI Kazuyuki 東北大学, 大学院・環境科学研究科, 教授 (10175474)
• Co-Investigator(Renkei-kenkyūsha): TAKAHASHI Hideyuki 東北大学, 大学院・環境科学研究科, 准教授 (90312652)
• Project Period (FY): 2011 – 2012
• Keywords: ナノチューブ・フラーレン / 太陽光発電 / 光物性 / 表面・界面物性 / 熱工学

Research Abstract

In this study, we prepared high crystalline single-walled carbon nanotube (SWCNT) thin film (transmittance 9.0 %)/bulk film (transmittance 2.3 %) interfacial structured film cells and investigated the photoelectromotive force. When a light (solar simulator AM1.5 with 100 mW/cm2) was irradiated toward the bulk film side (10×10 mm2) of the cells, the photoelectromotive force of 0.90 mV occurred. The Seebeck coefficient was estimated to be +66.4 μV/K, and the carrier of high crystalline SWCNT was a positive hole. Additionally, the interface of thin/bulk film was not Schottky junction but Ohmic since the I-V curve of the cells showed a liner shape. The photoelectromotive force in the SWCNT film/bulk interface cell is considered to be thermoelectromotive force derived from thermal gradient generated by photo-excitation electron converted into heat.

Research Products

• [Journal Article] Nitrogen physisorption and site blocking on single-walled carbon nanotubes (2012)
  • Author(s): S. -K. Lee, S. Iwata, S. Ogura, Y. Sato, K.Tohji, K. Fukutani
  • Journal Title: Surface Science Volume: 606巻 Pages: 293-296
  • DOI: DOI:10.1016/j.susc.2011.10.009
  • Peer Reviewed
• [Journal Article] Influence of the structure of the nanotube on mechanical properties of binder-free multi-walledcarbon nanotube solids (2012)
  • Author(s): Yoshinori Sato, Hikaru Nishizaka, Shunichi Sawano, Atsushi Yoshinaka, Kazutaka Hirano, Shinji Hashiguchi, Takayuki Arie, Seiji Akita, Go Yamamoto, Toshiyuki Hashida, Hisamichi Kimura, Kenichi Motomiya, Kazuyuki Tohji
  • Journal Title: Carbon Volume: 50巻 Pages: 34-39
  • DOI: DOI:10.1016/j. carbon.2011.07.047
  • Peer Reviewed
• [Journal Article] Boron-Assisted Transformation to Rod-Like Graphitic Carbons from Multi-Walled Carbon Nanotubes in Boron-Mixed Multi-Walled Carbon Nanotube Solids (2011)
  • Author(s): Yoshinori Sato, Hikaru Nishizaka, Kenichi Motomiya, Go Yamamoto, Akira Okubo, Hisamichi Kimura, Mikio Ishikuro, Kazuaki Wagatsuma, Toshiyuki Hashida, Kazuyuki Tohji
  • Journal Title: ACS Applied Materials & Interfaces Volume: 3巻 Pages: 2431-2439
  • DOI: DOI:10.1021/am200335n
  • Peer Reviewed
• [Journal Article] Influence of carbon structure of the anode on the production of graphite in single-walled carbon nanotube soot synthesized by arc discharge using a Fe-Ni-S catalyst (2011)
  • Author(s): Hikaru Nishizaka, Masaru Namura, Kenichi Motomiya, Yasumasa Ogawa, Yasuo Udaga, Kazuyuki Tohji, Yoshinori Sato
  • Journal Title: Carbon Volume: 49巻 Pages: 3607-3614
  • DOI: DOI:10.1016/j.carbon.2011.04.063
  • Peer Reviewed
• [Journal Article] カーボンナノチューブ-ホウ素焼結体中に含まれる無定形ホウ素と炭化ホウ素の形態別分離定量 (2011)
  • Author(s): 石黒三岐雄,佐藤義倫,田路和幸,我妻和明
  • Journal Title: 分析化学 Volume: 60巻 Pages: 807-811
  • DOI: DOI:10.2116/bunsekikagaku.60.807
  • Peer Reviewed
• [Presentation] 単層カーボンナノチューブ膜の光熱起電力特性 (2013)
  • Author(s): 榊原甫,佐藤義倫,伊野浩介,伊藤暁彦,末永智一,後藤孝,本宮憲一,田路和幸
  • Organizer: 第44回フラーレン・ナノチューブ・グラフェン総合シンポジウム
  • URL: http://fullerene-jp.org/jp/sympo44/
  • Place of Presentation: 文京区,東京都
  • Year and Date: 2013-03-13
• [Presentation] 単層カーボンナノチューブを用いた光起電力材料の探索 (2012)
  • Author(s): 榊原甫,佐藤義倫,伊野浩介,伊藤暁彦,塗溶,後藤孝,末永智一,田路和幸
  • Organizer: 第5回資源・素材学会東北支部若手の会
  • URL: http://www.mmij.or.jp/branch/001/wakate.html
  • Place of Presentation: 大潟村,秋田県
  • Year and Date: 2012-10-12
• [Presentation] 単層カーボンナノチューブを用いた光起電力材料の探索 (2012)
  • Author(s): 榊原甫,佐藤義倫,伊野浩介,伊藤暁彦,塗溶,後藤孝,末永智一,田路和幸
  • Organizer: 平成24年度資源・素材学会東北支部春季大会
  • URL: http://www.mmij.or.jp/branch/001/info.html
  • Place of Presentation: 仙台市,宮城県
  • Year and Date: 2012-06-22
• [Remarks] 1.佐藤義倫,高結晶単層カーボンナノチューブを用いた可視・近赤外光応答型光熱蓄電池の創製に関する研究,平成24年度石田(實)記念財団研究奨励賞,2012年11月16日. 〔受賞〕
  • URL: http://www.ishida- kinenzaidan.or.jp/
• [Remarks] 2.榊原甫,佐藤義倫,伊野浩介,伊藤暁彦,塗溶,後藤孝,末永智一,田路和幸,単層カーボンナノチューブを用いた光起電力材料の探索,平成24年度資源・素材学会東北支部春季大会ポスター賞(銅賞),2012年6月22日. 〔受賞〕
  • URL: http://www.mmij.or.jp/branch/001/info.html