欠陥フリー低鉛ペロブスカイトナノ結晶の基礎研究と光電デバイスへの応用
| Project/Area Number |
18F18370
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 28030:Nanomaterials-related
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| Research Institution | The University of Electro-Communications |
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| Host Researcher |
沈 青 電気通信大学, 大学院情報理工学研究科, 教授 (50282926)
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| Foreign Research Fellow |
LIU FENG 電気通信大学, 情報理工学(系)研究科, 外国人特別研究員
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| Project Period (FY) |
2018-11-09 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2020: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2019: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2018: ¥600,000 (Direct Cost: ¥600,000)
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| Keywords | 量子ドット / ペロブスカイト / 低欠陥 / 太陽電池 / quantum dots / perovskite / less defect / solar cell / perovskite nanocrystals / perovskite solar cell / near-unity PL QY |
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| Outline of Annual Research Achievements |
In the research, we have proposed improved synthetic methods which can lead to significantly improved crystal quality and stability for the resulting perovskite Pb-based QD and Sn-Pb alloyed QD solutions. We have demonstrated that a high photoluminescence quantum yield of up to 100% can be obtained in the Pb-based perovskite QDs, signifying the achievement of almost complete elimination of the trapping defects. Ultrafast kinetic analysis evidences the negligible electron or hole trapping pathways in our QDs. Solar cells based on the high-quality QDs exhibit power conversion efficiency of over 12%. We expect the successful synthesis of the “ideal” perovskite QDs will exert profound influence on their applications to both QD-based light-harvesting and -emitting devices in the near future.
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| Research Progress Status |
令和2年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和2年度が最終年度であるため、記入しない。
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Report
(3 results)
Research Products
(17 results)
