钙钛矿(结构)
材料科学
图层(电子)
双层
异质结
晶界
光电子学
降级(电信)
碳纤维
光伏系统
化学工程
纳米技术
复合材料
化学
电子工程
复合数
微观结构
生态学
生物化学
膜
工程类
生物
作者
Anjan Kumar,M.I. Sayyed,Abubakr M. Idris,Mayeen Uddin Khandaker,Pritpal Singh,Hussein A. Abbas,Karam Myaser Abd Alaziz,Hassan Sharif
出处
期刊:Energy & Fuels
[American Chemical Society]
日期:2023-10-18
卷期号:37 (21): 16924-16932
标识
DOI:10.1021/acs.energyfuels.3c03361
摘要
Carbon-based perovskite solar cells (C-PSCs) without hole transport layers offer acceptable stability while they suffer from low performance. In the current study, we fabricated a two-dimensional/three-dimensional (2D/3D) hybrid perovskite layer over a FAPbI3 layer with the assistance of triethylbenzylammonium chloride (TBACl) vapor in HTL-free C-PSCs. The TBACl vapor by reaction with the surface residual PbI2 of FAPbI3 passivates the grain boundaries and promotes perovskite grain growth. The 2D/3D bilayer reduces surface defects and acts as an interface modifier, reduces charge recombination processes, facilitates charge transfer processes, and shields the FAPbI3 layer from degradation. The fabricated HTL-free C-PSCs with 2D/3D bilayers show photovoltaic performance and record a champion efficiency of 16.10%, higher than the 11.78% recorded for control devices. In addition, the 2D/3D HTL-free C-PSCs show higher stability behavior against ambient air and heating.
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