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- W3119177546 abstract "Abstract One route to a brighter global energy future may be through enhancing the efficiency and stability of perovskite solar cells (PSCs), which depends on the level of defects in the photoactive absorber and along the interfaces of the multilayered structure. Here, we use a combined experimental and theoretical approach to study the effects of pressure-induced compaction of microvoids and closure of cracks on the power conversion efficiency (PCEs) and stability of formamidinium-rich PSCs. A range of mechanical pressures was applied to the PSCs to reduce pre-existing grain-boundary voids and interfacial cracks within the devices. The PCEs of the PSCs increased from ~19.5% to ~ 23.5% for applied pressures between ~ (0 – 7) MPa. Unlaminated device stability increased by 33%, falling to 80% of initial PCE in 1800 hrs without compression, as compared to 2400 hrs with compression. The implications of this study are discussed in light of possible future manufacturing processes." @default.
- W3119177546 created "2021-01-18" @default.
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- W3119177546 date "2020-12-30" @default.
- W3119177546 modified "2023-09-27" @default.
- W3119177546 title "Pressure-Induced Void and Crack Closure Improves the Photoconversion Efficiency and Stability of Perovskite Solar Cells" @default.
- W3119177546 doi "https://doi.org/10.21203/rs.3.rs-134394/v1" @default.
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