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- W2892285004 abstract "Planar lead halide perovskite solar cells have shown a promising application in the field of printable solar cells. However, high-performance planar perovskite solar cells typically need a high-temperature process to achieve crystallized titanium oxide films as the electron transport layers, which hinders their application in flexible plastic substrates. Here, we demonstrate a bilayered TiO2-SnO2 film as an excellent substitute for electron transport layer using a low temperature liquid phase method. The bilayered TiO2-SnO2 film exhibits efficient electron extraction and hole blocking ability even at a low processing temperature of 150 °C. The as-obtained solar cells exhibit a champion power conversion efficiency of 18.85% (Voc = 1.100 V, Jsc = 22.52 mA cm−2 and FF = 0.761) under one sun illumination, which is much higher than the devices based on individual SnO2 or TiO2 electron transport layers. The higher electron extraction driving force at the SnO2/perovskite interface and the stronger hole blocking ability due to the defect-free physical contact at the TiO2/FTO interface are suggested to be the main reasons for the improved device performance." @default.
- W2892285004 created "2018-09-27" @default.
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- W2892285004 date "2019-01-01" @default.
- W2892285004 modified "2023-10-16" @default.
- W2892285004 title "Low temperature solution-derived TiO2-SnO2 bilayered electron transport layer for high performance perovskite solar cells" @default.
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- W2892285004 doi "https://doi.org/10.1016/j.apsusc.2018.09.146" @default.
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