| Budget Amount *help |
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2017: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2016: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
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| Outline of Final Research Achievements |
Research on quantum dot solar cells is currently actively conducted around the world for the efficient use of solar energy. In this study, we changed the composition of solid solution type quantum dots such as ZnSe-AgInSe2 and prepared the quantum dot thin film structure while controlling the arrangement of energy gap of them. As a result, excitons were collected on the charge separation interface of the thin film via energy transfer, and the photoenergy conversion efficiency were improved by the exciton collection mechanism along the gradient of the energy gap. Such a system is expected to approach the high theoretical conversion efficiency of quantum dot solar cells.
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