Research and development of next-generation inorganic solar cells using interfacial charge-transfer transitions as a novel operating principle
| Project/Area Number |
25620054
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Gunma University (2014-2015)
The University of Tokyo (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 太陽電池 / 光エネルギー変換 / 界面 / 界面電荷移動遷移 / 酸化チタン / 硫化物 / 光電変換 / 硫黄 / 新原理 |
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| Outline of Final Research Achievements |
Interfacial charge-transfer transitions enable direct photoinduced charge separation without loss of energy. In this work, we found that interfacial charge-transfer transitions take place from the surface-bound sulfur atoms on TiO2 to the conduction band of TiO2 in a TiO2-benzenedithiol surface complex. In addition, I applied this material to photovoltaic cells. We observed that photoelectric conversion occurs by the surfur-to-TiO2 interfacial charge-transfer transitions with an internal quantum efficiency of about 65%. This result reveals the possibility that a new hybrid material for ICT transitions can be produced by combining titanium dioxide with sulfur-containing compounds.
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Report
(4 results)
Research Products
(3 results)
