| Budget Amount *help |
¥41,860,000 (Direct Cost: ¥32,200,000、Indirect Cost: ¥9,660,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2017: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2016: ¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
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| Outline of Final Research Achievements |
Based on the unique microwave spectroscopy, this project successfully established a comprehensive understanding of charge carrier dynamics, unprecedented dielectric properties, and performance-governing factors of non-lead solar cells and photocatalysts such as tin, bismuth, antimony, and titanium. By exploring over 200 semiconductors with our ultrafast screening technique, a plausible material for a photoelectric conversion was identified. Furthermore, a new process to fabricate its high quality thin film was developed, which successfully improved the photoelectric conversion performance by two orders of magnitude. In addition, we revealed for the first time the mechanism of unprecedented dielectric behavior found in the non-lead materials and the correlation of calculated charge carrier effective masses, mobility, and photocatalytic activity, by exploiting quantum chemical calculations.
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