期刊
SCIENCE
卷 376, 期 6588, 页码 73-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abm5784
关键词
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资金
- King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) [OSR-CARF/CCF-3079, OSR-CRG2019-4093, OSRCRG2020-4350, IED OSR-2019-4208, IED OSR-2019-4580, REI/1/4833-01-01]
By tailoring the dimensional fragments of two-dimensional perovskite layers, damp-heat stable perovskite solar cells with high power conversion efficiencies were successfully fabricated. These cells retain over 95% of their initial value after more than 1000 hours under damp-heat test conditions, meeting one of the critical industrial stability standards for photovoltaic modules.
If perovskite solar cells (PSCs) with high power conversion efficiencies (PCEs) are to be commercialized, they must achieve long-term stability, which is usually assessed with accelerated degradation tests. One of the persistent obstacles for PSCs has been successfully passing the damp-heat test (85 degrees C and 85% relative humidity), which is the standard for verifying the stability of commercial photovoltaic (PV) modules. We fabricated damp heat-stable PSCs by tailoring the dimensional fragments of two-dimensional perovskite layers formed at room temperature with oleylammonium iodide molecules; these layers passivate the perovskite surface at the electron-selective contact. The resulting inverted PSCs deliver a 24.3% PCE and retain >95% of their initial value after >1000 hours at damp-heat test conditions, thereby meeting one of the critical industrial stability standards for PV modules.
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