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- W3185273003 abstract "The CsPbIBr2 perovskite has obvious advantages in balancing the stability and efficiency in inorganic perovskite solar cells (PSCs). Its large bandgap of 2.08 eV, which leads to a narrow spectral absorption (<600 nm), is the key limit to yielding a high power conversion efficiency (PCE). Herein, it is demonstrated that by integrating a thin bulk-heterojunction (BHJ) layer (19 nm) composed of the typical poly (3-hexylthiophene-2,5-diyl) and [6,6]-phenyl methyl C61 butyric acid methyl ester (P3HT:PCBM) with CsPbIBr2 perovskite, a carbon-based all-inorganic PSC achieves a much higher champion PCE (11.54%) than the original CsPbIBr2 device (8.87%), and the value is also at the highest PCE level of all-inorganic CsPbIBr2 PSCs. The integration of a thin BHJ layer brings an expanded light absorption range, better charge transfer dynamics, suppressed interfacial energy loss, and improved long-term stability. The unencapsulated CsPbIBr2 PSC with an integrated BHJ layer shows excellent long-term stability in an ambient atmosphere with high relative humidity (RH ≈ 45%, T ≈ 25 °C). Therefore, the BHJ integration is an effective strategy on the road to industrialization of carbon-based all-inorganic PSCs with low cost, high efficiency, and excellent long-term stability." @default.
- W3185273003 created "2021-08-02" @default.
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- W3185273003 date "2021-08-04" @default.
- W3185273003 modified "2023-10-16" @default.
- W3185273003 title "High‐Efficiency Carbon‐Based CsPbIBr <sub>2</sub> Solar Cells with Interfacial Energy Loss Suppressed by a Thin Bulk‐Heterojunction Layer" @default.
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- W3185273003 doi "https://doi.org/10.1002/solr.202100375" @default.
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