Solution microcrystal enables a high-quality CsPbIBr2 film to minimize intragranular charge recombination for air-stable, carbon-based photovoltaics
نویسندگان
چکیده
The colloidal nature of perovskite precursor solution highly determines the quality film and photovoltaic performance a solar cell (PSC). Herein, we demonstrate facile method to fabricate high-quality all-inorganic CsPbIBr2 by regulating temperature solution. After characterization, stable microcrystals with size up 1 have been formed under high temperatures, more suitable for preferable crystallization spontaneous nucleation than at room temperature. Consequently, rapid charge transfer across enlarged crystal grain rather intragranular recombination is achieved within because reduced defects, promoting efficiency as 11.12% carbon-based PSC, which higher that control device 8.51% efficiency. Moreover, optimal shows improved stability air atmosphere high-temperature conditions.
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ژورنال
عنوان ژورنال: Science China. Materials
سال: 2022
ISSN: ['2095-8226', '2199-4501']
DOI: https://doi.org/10.1007/s40843-022-2199-5