钝化
材料科学
钙钛矿(结构)
掺杂剂
离子键合
晶界
化学工程
离子液体
Crystal(编程语言)
离子
无机化学
兴奋剂
光电子学
纳米技术
微观结构
复合材料
催化作用
化学
有机化学
工程类
计算机科学
程序设计语言
图层(电子)
作者
Dufeng Li,Yunjuan Niu,Zhiqian Yang,Li Qin,Zhengguo Zhang,Linhua Hu
标识
DOI:10.1016/j.matlet.2023.134427
摘要
Ionic solutions in perovskite solar cells (PSCs) have been demonstrated to significantly enhance their photoelectric performance serviced as interfacial passivation. In this study, the effect of ionic liquids with cations on the performance of PSCs was examined. By controlling the amount of cations introduced, lattice microstrains were minimized, the growth and stability of the crystal structure were promoted. Furthermore, adding organic anions also helped passivate grain boundaries and inhibit non-radiative processes, leading to further improvements in device performance. The incorporation of ionic-liquid dopants into the perovskite material resulted in the creation of devices with efficiency of 22.74%. Furthermore, devices retained their initial efficiency of 91% for 1000 h under conditions of 65 ± 5% relative humidity.
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