2023 Fiscal Year Annual Research Report
Innovative reactive polyiodide melt method to fabricate lead-free Perovskite absorber layers and solar cells
| Project/Area Number |
19K05683
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Kazaoui Said 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 (30356761)
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | perovskite / tin / lead-free / synthesis / XRD |
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| Outline of Annual Research Achievements |
Perovskite solar cell can overcome the energy issues of our society. Here, I investigated the formation of MASnI3 perovskite film synthesized by reacting Sn metal thin film (deposited on glass substrate by vacuum process, substrate temperature was 95℃) with MAI vapor (source temperature was 145℃, pressure was 0.1MPa) in 2-zone furnace without using organic solvents and additives. From the analysis of the XDR and TGA data, we suggested a direct conversion mechanism involving the thermal decomposition of MAI and release of gazes as follows: Sn+3CH3NH3I→CH3NH3SnI3+(2CH3NH2+H2). I reported the results at international conferences.
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