Development of dye-sensitized solar cells with over 1 V open circuit voltage
Project/Area Number |
20750156
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Functional materials/Devices
|
Research Institution | Tokyo University of Science |
Principal Investigator |
YAMAGUCHI Takeshi Tokyo University of Science, 工学部第一部, 助教 (50408720)
|
Project Period (FY) |
2008 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | 色素増感太陽電池 / 太陽電池 / 太陽光発電 / 新エネルギー / 再生可能エネルギー高効率化 / タンデムセル / 光物性 / 再生可能エネルギー / 高効率化 |
Research Abstract |
In this study, for the investigation of higher voltage DSCs, we adopted Br^-/Br_3^- as a redox pair. Br^-/Br_3^- has more positive redox level than I^-/I_3^- and its combination with TiO2 is considered to enable high voltage DSCs. We selected tris-(4, 4'- dicarboxylate-2, 2'-bipyridine) ruthenium(II) ((dcbpy)_3Ru) as a dye showing proper HOMO-LUMO level for Br^-/Br_3^- redox level and TiO_2 conduction band. Furthermore, we synthesized some (dcbpy)_2(R2bpy)Ru complexes as the dye having proper HOMOLUMO level for Br^-/Br_3^- redox level. We investigated DSC performances sensitized by these dye complexes. By using Br-/Br3- electrolyte, (dcbpy)_2(bpy)Ru-sensitized cell showed 3.5% efficiency with high Voc = 1.01 V.
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Report
(3 results)
Research Products
(11 results)