Development of Near-IR Absorbing Dyes for Conversion of Unused Solar Light

• Project/Area Number: 22350086
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Organic industrial materials
• Research Institution: Shinshu University
• Principal Investigator: KIMURA Mutsumi 信州大学, 繊維学部, 准教授 (60273075)
• Co-Investigator(Kenkyū-buntansha): MORI Shogo 信州大学, 繊維学部, 准教授 (10419418)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000); Fiscal Year 2012: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2010: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
• Keywords: 色素・色材 / 機能性有機材料 / 色素増感太陽電池 / 色素 / フタロシアニン / 吸着 / 酸化チタン / 会合 / 電子寿命 / 太陽電池 / 変換効率 / カクテル / 亜鉛フタロシアニン錯体 / 光電変換 / 近赤外光 / 立体障害 / 置換基 / 電子移動過程

Research Abstract

A series of zinc phthalocyanine sensitizers (PcS6-18) having different adsorption sites have been designed and synthesized to investigate the dependence of adsorption site structures on the solar cell performances in zinc phthalocyanine-based dye-sensitized solar cells. The change of adsorption sites affected the electron injection efficiency from the photo-excited dye into the nanocrystalline TiO2semiconductor as monitored by picosecond time-resolved fluorescence spectroscopy. The zinc phthalocyanine sensitizer PcS18possessing one carboxylic acid directly attached to the ZnPc ring and six 2,6-diisopropylphenoxy units showed a record PCE value of 5.9 % when used as a light-harvesting dye on a TiO2electrode under one sun condition.

Research Products

• [Journal Article] Molecular Design Rule of Phthalocyanine Dyes for Highly Efficient Near-IR Performance in Dye Sensitized Solar Cells (2013)
  • Author(s): M. Kimura, H. Nomoto, H. Suzukia, T. Ikeuchi, H. Matsuzaki, T. N. Murakami, A. Furube, N. Masaki, M. J. Griffitha, and S. Mori
  • Journal Title: Chemistry-An European Journal Volume: (in press)
  • Peer Reviewed
• [Journal Article] Extension of Light-Harvesting Area of Bulk-heterojunction Solar Cells by Co-sensitization with Ring-expanded Metallophthalocyanines Fused with Fluorene Skeltons (2013)
  • Author(s): S. Yamamoto and M. Kimura
  • Journal Title: ACS Applied Materials & Interfaces Volume: (in press)
  • Peer Reviewed
• [Journal Article] Extension of Light-Harvesting Area of Bulk-Heterojunction Solar Cells by Co-sensitization with Ring Expanded Metallophthalocyanines Fused with Fluoreene Skeltons (2013)
  • Author(s): S. Yamamoto and M. Kimura
  • Journal Title: ACS Applied Materials and Interfaces Volume: in press
  • Peer Reviewed
• [Journal Article] Molecular Design Rule of Phthalocyanine Dyes for Highly Efficient Near-IR Performance in Dye Sensitized Solar Cells (2013)
  • Author(s): Mutsumi Kimura, Hirotaka Nomoto, Hiroyuki Suzuki, Takuro Ikeuchi, Hiroyuki Matsuzaki, Takuro N. Murakami, Akihiko Furube, Naruhiko Masaki, Matthew J. Griffith, and Shogo Mori
  • Journal Title: Chemistry - A European Journal Volume: in press
  • Peer Reviewed
• [Journal Article] Dye Molecules for Simple Co-Sensitization Process: Fabrication of Mixed-Dye-Sensitized Solar Cells (2012)
  • Author(s): M. Kimura, H. Nomoto, N. Masaki, S. Mori
  • Journal Title: Angew. Chem. Int. Ed. Volume: 51 Pages: 4371-4374
  • Peer Reviewed
• [Journal Article] Organic Sensitizers Including p-Conjugated Fluorene-benzothiadiazole Bridge for Dye-Sensitized Solar Cells (2012)
  • Author(s): M. Kimura, M. Karasawa, N. Sasagawa, K. Takemoto, R. Goto, S. Mori
  • Journal Title: Chem. Lett. Volume: 41 Pages: 1613-1615
  • Peer Reviewed
• [Journal Article] Enhancement of Incident Photon-to-Current Conversion Efficiency for Phthalocyanine Sensitized Solar Cells by 3D Molecular Structuralization (2010)
  • Author(s): S. Mori, M. Nagata, Y. Nakahata, K. Yasuta, R. Goto, M. Kimura, M. Taya
  • Journal Title: J. Am. Chem. Soc Volume: 132 Pages: 4054-4055
  • Peer Reviewed
• [Journal Article] Self-Coordinated Phthalocyanine Nanoaggregates (2010)
  • Author(s): M. Kimura, T. Hatanaka, Y. Tatewaki, T. Fukawa, H. Shirai
  • Journal Title: Chemistry Letters Volume: 39 Pages: 946-947
  • Peer Reviewed
• [Journal Article] Supramolecular Stacks of Asymmetric Zinc Phthalocyanines Functionalized with One Tetrathiafulvalene Unit (2010)
  • Author(s): M. Kimura, S. Otsuji, J. Takizawa, Y. Tatewaki, T. Fukawa, H. Shirai
  • Journal Title: Chemistry Letters Volume: 39 Pages: 812-813
  • Peer Reviewed
• [Journal Article] Enhancement of Incident Photon-to-Current Conversion Efficiency for Phthalocyanine Sensitized Solar Cells by 3D Molecular Structuralization (2010)
  • Author(s): S.Mori, M.Nagata, Y.Nakahata, K.Yasuta, R.Goto, M.Kimura, M.Taya
  • Journal Title: Journal of the American Chemical Society Volume: 132 Pages: 4054-4055
  • Peer Reviewed
• [Journal Article] Dye Molecules for Simple Co-sensitization Process : Fabrication of Mixed Dye-Sensitized Solar Cells
  • Author(s): M.Kimura, et al
  • Journal Title: Angew.Chem.Int.Ed. Volume: (In press)
  • Peer Reviewed
• [Book] 色素増感太陽電池用近赤外変換色素、月刊ファインケミカル (2013)
  • Author(s): 木村 睦
  • Publisher: シーエムシー出版
• [Remarks]
  • URL: http://rpc-shinshu.com/Kimura_lab/Top_Page.html