Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
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Outline of Final Research Achievements |
As lead-free perovskite semiconductors for solar cell materials, we focused on Sn-halide, Ge-halide, and double perovskite systems. In Ge-halide and double perovskite systems, we elucidated characteristic structural changes with temperature and pressure which accompanied intriguing changes in electronic and optical properties. For Sn-halide perovskite solar cells, we proposed several additives by utilizing co-additive engineering and achieved the suppression of oxidation of Sn ions and the significant improvement of perovskite film quality, resulting in the improvement of power conversion efficiency and device stability.
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