2023 Fiscal Year Annual Research Report
Hybrid Perovskite/Quantum dot cells for third generation photovoltaics
| Project/Area Number |
22KF0413
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| Allocation Type | Multi-year Fund |
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Svrcek Vladimir 国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (80462828)
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| Co-Investigator(Kenkyū-buntansha) |
ALESSI BRUNO 国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 外国人特別研究員
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| Project Period (FY) |
2023-03-08 – 2024-03-31
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| Keywords | quantum dots / solar cells |
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| Outline of Annual Research Achievements |
Firstly, we investigated an innovative approach to fabricate formamidinium lead iodide (FAPbI3) quantum dots (QDs) by replacing Octadecene (ODE), a primary solvent in the hot injection synthesis process, with Octene (OCE), a shorter linear alpha olefin. This substitution enabled the production of photoactive films with controllable thicknesses. Remarkably, we achieved an unprecedented absolute photoluminescence quantum yield of up to 84%, a significant improvement from the 70% obtained with ODE. The results showed a remarkable enhancement in average power conversion efficiency (PCE), increasing from 200% to 150%, along with consistently higher values for open-circuit voltage and short-circuit current density for the Octene-based solar cell compared to its ODE-based counterpart.
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