卤化物
钙钛矿(结构)
能量转换效率
开路电压
光伏系统
结晶
溴化物
材料科学
制作
无机化学
化学工程
化学
光电子学
电压
结晶学
有机化学
物理
生态学
量子力学
生物
医学
替代医学
病理
工程类
作者
Meenakshi Pegu,Abolfazl Ghaderian,Shahzada Ahmad,Samrana Kazim
标识
DOI:10.1002/cplu.202200021
摘要
The past decade has witnessed tremendous advancement in the field of halide perovskite (PSK) as a choice of material for high-performing solar cells fabrication. Here, we investigate the impact of the halide exchange through N-bromosuccinimide (NBS) treatment in MAPbI3 based solar cells. We observed the partial halide exchange (I- to Br- ) or the filling of halide (X- ) vacancy upon treatment of different NBS concentrations experimentally by spectroscopic and diffractogram studies. We noted that halide exchange impacts the crystallization and is beneficial in improving the photovoltaic performance. The optimized 0.5 % NBS treated PSC exhibited a power conversion efficiency of 17.87 % due to an increment in open-circuit voltage (Voc ) and short circuit current (Jsc ). We noted improved perovskite crystal growth upon Br- substitution; eventually, it helps to lower the trap density, reducing non-radiative recombination and renders the enhancement of long-term stability of PSC.
科研通智能强力驱动
Strongly Powered by AbleSci AI