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Doping with KBr to Achieve High-Performance CsPbBr3 Semitransparent Perovskite Solar Cells
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-04-04 , DOI: 10.1021/acsami.4c02402 Xiongzhuang Jiang 1 , Cong Geng 1 , Xinxin Yu 1 , Junye Pan 1 , Huiren Zheng 1 , Cheng Liang 1 , Bin Li 2 , Fei Long 3 , Liyuan Han 4 , Yi-Bing Cheng 1 , Yong Peng 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-04-04 , DOI: 10.1021/acsami.4c02402 Xiongzhuang Jiang 1 , Cong Geng 1 , Xinxin Yu 1 , Junye Pan 1 , Huiren Zheng 1 , Cheng Liang 1 , Bin Li 2 , Fei Long 3 , Liyuan Han 4 , Yi-Bing Cheng 1 , Yong Peng 1
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Wide-bandgap semitransparent perovskite photovoltaics are emerging as one of the ideal candidates for building-integrated photovoltaics (BIPV). However, surface defects in inorganic CsPbBr3 perovskite prepared by vapor deposition severely limit the optoelectronic performance of perovskite solar cells. To address this issue, a strategy of doping a trace amount of KBr into perovskite by vapor deposition is adopted, effectively improving the quality of the film, reducing surface defect concentration, and enhancing the transportation and extraction of charge carriers. Simultaneously, fully physical vapor deposition technology is employed to fabricate perovskite solar cells with an average visible light transmittance of 44%. These devices exhibited an ultrahigh open-circuit voltage of 1.55 V and a superior power conversion efficiency (PCE) of 7.28%, demonstrating excellent moisture and heat resistance. Moreover, the corresponding 5 cm × 5 cm modules achieve a PCE of 5.35% with great thermal insulation capability. This work provides an approach for fabricating highly efficient all-inorganic perovskite solar cells with high average visible light transmittance, demonstrating new insights into their application in building-integrated photovoltaics.
中文翻译：
掺杂 KBr 实现高性能 CsPbBr3 半透明钙钛矿太阳能电池
宽带隙半透明钙钛矿光伏发电正在成为建筑一体化光伏发电（BIPV）的理想候选材料之一。然而，气相沉积制备的无机CsPbBr 3钙钛矿的表面缺陷严重限制了钙钛矿太阳能电池的光电性能。针对这一问题，采用气相沉积将微量KBr掺杂到钙钛矿中的策略，有效提高了薄膜的质量，降低了表面缺陷浓度，增强了载流子的传输和提取。同时，采用全物理气相沉积技术，制备出平均可见光透过率为44%的钙钛矿太阳能电池。这些器件具有 1.55 V 的超高开路电压和 7.28% 的卓越功率转换效率 (PCE)，表现出出色的防潮耐热性。此外，相应的5 cm × 5 cm组件的PCE达到5.35%，具有良好的隔热能力。这项工作提供了一种制造具有高平均可见光透过率的高效全无机钙钛矿太阳能电池的方法，展示了其在建筑一体化光伏中应用的新见解。
更新日期：2024-04-04
中文翻译：
掺杂 KBr 实现高性能 CsPbBr3 半透明钙钛矿太阳能电池
宽带隙半透明钙钛矿光伏发电正在成为建筑一体化光伏发电（BIPV）的理想候选材料之一。然而，气相沉积制备的无机CsPbBr 3钙钛矿的表面缺陷严重限制了钙钛矿太阳能电池的光电性能。针对这一问题，采用气相沉积将微量KBr掺杂到钙钛矿中的策略，有效提高了薄膜的质量，降低了表面缺陷浓度，增强了载流子的传输和提取。同时，采用全物理气相沉积技术，制备出平均可见光透过率为44%的钙钛矿太阳能电池。这些器件具有 1.55 V 的超高开路电压和 7.28% 的卓越功率转换效率 (PCE)，表现出出色的防潮耐热性。此外，相应的5 cm × 5 cm组件的PCE达到5.35%，具有良好的隔热能力。这项工作提供了一种制造具有高平均可见光透过率的高效全无机钙钛矿太阳能电池的方法，展示了其在建筑一体化光伏中应用的新见解。
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