Rotatable Skeleton for the Alleviation of Thermally Accumulated Defects in Inorganic Perovskite Solar Cells

• DOI: 10.1021/acsenergylett.3c00535
• Publication Date: 2023-04-18T17:04:12Z
• Authors: Wenwen Wu; Hui Xiong; Jiahuan Deng; Mengqi Wang; Huiqun Zheng; Min Wu; Songyang Yuan; Zhipeng Ma; Jiandong Fan; Wenzhe Li
• Keywords: Thermal Stability

The stability of perovskite solar cells has been identified as the bottleneck for their industrialization. With an aim at tackling this challenge, we self-synthesize a thus-far unreported linearly rotatable structure perovskite, i.e., TrMAPbX3 (X = Br, I). as-prepared hybrid is observed to demonstrate extremely high during device operation with electric field strength and temperature, which associated good lattice-matching heterojunction between 3D inorganic domain within wide temperature range. tight-fitting interface devoted inhibiting accumulation vacancy defects operation, further avoids δ-phase transition charge transport resistance. Accordingly, realize CsPbI3–xBrx perovskite-based cell power conversion efficiency (PCE) 20.59%, extending remarkably thermal 192 h (85 °C relative humidity 25%) 3055 (25 25%).