材料科学
钙钛矿(结构)
铁电性
光电子学
图层(电子)
晶界
卤化物
纳米技术
电介质
化学工程
无机化学
复合材料
化学
工程类
微观结构
作者
Lingbo Xiao,Xiaoli Xu,Zheng Lü,Jie Zhao,Ruiyuan Liu,Yaqi Ye,Rujun Tang,Wei‐Qiang Liao,Ren‐Gen Xiong,Guifu Zou
出处
期刊:Nano Energy
[Elsevier]
日期:2023-03-01
卷期号:107: 108114-108114
被引量:3
标识
DOI:10.1016/j.nanoen.2022.108114
摘要
Halide perovskite solar cells (PSCs) have shown outstanding performance, which can be further improved through enhancing the built-in electric field (Vbi) and reducing non-radiative recombination pathways. Here we in-situ grow an organic-inorganic ferroelectric layer on the perovskite film, which can be easily and quickly processed even at room-temperature within one minute. The in-situ process endows intimate growth of ferroelectric layer on the original perovskite grains, which can reduce the formation of grain boundaries and thus minimize the recombination of electron and hole at grain boundaries. The Vbi of the PSCs is enhanced from 1.02 V to 1.28 V due to the widened space charge depletion region after the formation of ferroelectric layer. Finally, an output photovoltage up to 1198 mV is achieved with a champion efficiency of 22.45% and a low voltage deficit of 352 mV. The strategy offers a new platform of growing intimate ferroelectric layers on perovskite photoactive films for integration between ferroelectrics and PSCs.
科研通智能强力驱动
Strongly Powered by AbleSci AI