| Budget Amount *help |
¥41,080,000 (Direct Cost: ¥31,600,000、Indirect Cost: ¥9,480,000)
Fiscal Year 2017: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2016: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2015: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2014: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
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| Outline of Final Research Achievements |
"Word is in danger of survival. In addition, the future of human is threatened." The former US Vice President, Albert Arnold Gore, Jr., spoke about the current situation of the Earth facing the crisis and claimed that the development of clean energy sources is important. In this research, we have developed ferroelectric solar cell devices with improving photoelectric conversion characteristics under visible light. We discover "domain-wall photovoltaic effect", where the origin is different from the conventional bulk photovoltaic effect. We reveal that that it delivers a photovoltaic strength, i.e., 8,000 times as large as that of the conventional effect. We also propose a new material design "Gap-State Engineering" that can enhance the visible-light photovoltaic effect by several orders of magnitude.
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