Expanding the low-dimensional interface engineering toolbox for efficient perovskite solar cells
| Autor: | Senyun Ye, Haixia Rao, Minjun Feng, Lifei Xi, Zhihao Yen, Debbie Hwee Leng Seng, Qiang Xu, Chris Boothroyd, Bingbing Chen, Yuanyuan Guo, Bo Wang, Teddy Salim, Qiannan Zhang, Huajun He, Yue Wang, Xingchi Xiao, Yeng Ming Lam, Tze Chien Sum |
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| Přispěvatelé: | School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Facility for Analysis, Characterisation, Testing and Simulation |
| Rok vydání: | 2023 |
| Předmět: |
Fuel Technology
Renewable Energy Sustainability and the Environment Halide Perovskites Energy Engineering and Power Technology Capping Layer Materials::Material testing and characterization [Engineering] High Efficiency Materials::Photonics and optoelectronics materials [Engineering] Solar Cells Electronic Optical and Magnetic Materials |
| Zdroj: | Nature Energy. 8:284-293 |
| ISSN: | 2058-7546 |
| DOI: | 10.1038/s41560-023-01204-z |
| Popis: | Three-dimensional/low-dimensional perovskite solar cells afford improved efficiency and stability. The design of low-dimensional capping materials is constrained to tuning the A-site organic cation, as Pb2+ and Sn2+ are the only options for the metal cation. Here we unlock access to a library of low-dimensional capping materials with metal cations beyond Pb2+/Sn2+ by processing a full precursor solution containing both metal and ammonium halides. This enables easier synthetic control of the low-dimensional capping layer and greater versatility for low-dimensional interface engineering. We demonstrate that a zero-dimensional zinc-based halogenometallate (PEA2ZnX4; PEA = phenethylammonium, X = Cl/I) induces more robust surface passivation and stronger n–N isotype three-dimensional/low-dimensional heterojunctions than its lead-based counterpart. We exhibit p–i–n solar cells with 24.1% efficiency (certified 23.25%). Our cells maintain 94.5% initial efficiency after >1,000 h of operation at the maximum power point. Our findings expand the material library for low-dimensional interface engineering and stabilization of highly efficient three-dimensional/low-dimensional perovskite solar cells. Ministry of Education (MOE) National Research Foundation (NRF) Submitted/Accepted version This work is supported by the Ministry of Singapore under its AcRF Tier 1 (Project RG6/21 (2021-T1-001-072) to Y.M.L.) and Tier 2 grants (MOE2019-T2-1-006 to T.C.S., MOE2019-T2-1-085 to Y.M.L. and MOE-T2EP50120-0004 to T.C.S.), and the National Research Foundation (NRF) Singapore under its NRF Investigatorship (NRF-NRFI2018-04 to T.C.S.). |
| Databáze: | OpenAIRE |
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