| Project/Area Number |
15K13774
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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 |
Organic and hybrid materials
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
HAYASE SHUZI 九州工業大学, 大学院生命体工学研究科, 教授 (80336099)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 太陽電池 / 光電変換 / ペロブスカイト / 水晶振動子 / 界面 / チタニア / 高効率 / 吸着 / QCM |
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| Outline of Final Research Achievements |
This report deals with the relationship between perovskite(Pb-PVK) solar cell efficiency and the crystal structure affected by nano-pore walls. Crystal structures of perovskite (Pb-PVK) created in the TiO2 nano-pore was smaller than that of the bulk Pb-PVK and were affected by the wall structures passivated with thin Al2O3, Y2O3 and ZrO2 layer. Crystal defect density was also affected by the surface structure. The presence of chloride anion increased the crystal size as well as the grain size. In addition, density of Ti-O-Pb linkages which present at the hetero-interface between the Pb-PVK layer and nano-pore wall of TiO2 and work for decreasing charge recombination centers, was enhanced by the presence of the chloride anion. The above results explain the efficiency enhancement of the solar cell in the presence of chloride anion. It was found that nano-pore wall structure is one of the factors for determining the efficiency.
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