Suppressing charge recombination in a methylammonium-free wide-bandgap perovskite film for high-performance and stable perovskite solar cells

• Published in: Energy & environmental science Vol. 17; no. 16; pp. 5866 - 5875
• Main Authors: Ye, Qiufeng, Hu, Wenzheng, Zhu, Junchi, Cai, Ziyu, Zhang, Hengkang, Dong, Tao, Yu, Boyang, Chen, Feiyang, Wei, Xieli, Yao, Bo, Dou, Weidong, Fang, Zebo, Ye, Feng, Liu, Zhun, Li, Tie
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 13.08.2024
• Subjects: Cesium; Crystal defects; Energy bands; Energy conversion efficiency; Energy gap; Grain boundaries; Heterojunctions; Iodides; Open circuit voltage; Perovskites; Photovoltaic cells; Photovoltaics; Rubidium; Solar cells; Storage stability; Thermal stability; Trioctylphosphine oxide; Voltage

Wide-bandgap (WBG) formamidinium-cesium (FA-Cs) hybrid lead iodide-bromide mixed perovskites (∼1.7 eV) have gained great attention with the potential of enabling highly efficient tandem photovoltaics when integrated with crystalline silicon and other low-bandgap solar cells. However, their power con...