Fabrication of copper-indium sulfide colloids prepared in water and their applications to the TiO2 based quantum dot-senitized solar cells
Project/Area Number |
26420730
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Structural/Functional materials
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Research Institution | Osaka Institute of Technology |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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Keywords | 量子ドット型太陽電池 / 無機色素光増感 / CIS-TiO2 / マイクロ波照射 / CISコロイド / 太陽光エネルギー変換効率 / 量子ドット太陽電池 / Cu-In-Sナノコロイド / 高結晶化 / 銅‐インジウム‐硫化物コロイド / 光電極 / カーボン電極 / 擬似太陽光 / エネルギー変換効率 / 多硫化物イオン / 湿式太陽電池 / 金属硫化物半導体 |
Outline of Final Research Achievements |
The copper-indium-sulfide (CIS) colloids with thioglycolic acid (TGA) were prepared in “green” water media. And, subsequently the CIS colloidal solutions were treated with microwave (MW)-irradiation at different temperatures. Then, the preferable solar cell employing CIS colloids in In/Cu ratio of 2 treated at 160℃ showed high photo-conversion efficiency (PCE) yielding with 6.12% (short-circuit current: 14.0 mA/cm2, open-circuit voltage: 0.91 V and fill factor: 48.0%). To our best knowledge, this value is the highest among the solar cells employing CIS colloids prepared in water media. It was also confirmed that the MW-irradiation improved the light absorption of the CIS colloids as well as induced photo-electrochemical cathodic shift of the Fermi levels for the CIS-TiO2 photoelectrode due to the reduction of defective sites involved in the CIS colloids.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] Highly qualified copper-indium sulfide colloids prepared in water under microwave irradiation and their applications to the TiO2 based quantum dot-sensitized solar cells2017
Author(s)
Higashimoto, S., Murano, M., Arase, T., Mukai, S., Azuma, M., Takahashi, M.
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Journal Title
Solar Energy Materials and Solar Cells
Volume: -
Pages: 203-209
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] High performance of TiO2 based solar cells sensitized with copper-indium sulfide colloids prepared in water: Roles of surface modifications with indium sulfide and zinc sulfide by SILAR methods2016
Author(s)
Higashimoto, S. , Okada, T., Arase, T., Azuma, M., Yamamoto, M., Takahashi, M.
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Journal Title
Electrochimica Acta
Volume: 222
Pages: 867-874
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Book] Nanostructured Photocatalysts2016
Author(s)
S. Higashimoto, H. Yamashita, R. Abe, F. Amano, S. Hosokawa, Y. Ichihashi, T. Kamegawa, H. Kominami, K. Sayama, T. Tanaka, K. Teramura T. Toyao, A. Wan, W. Wang, S. Xiao, M. Xing
Total Pages
537
Publisher
Springer
Related Report