材料科学
卤化物
钙钛矿(结构)
成核
光伏
三卤化物
锡
光电子学
纳米技术
光伏系统
化学工程
无机化学
冶金
化学
电气工程
工程类
有机化学
作者
Zhen Gao,Junfang Wang,Hongbin Xiao,M. Abdel‐Shakour,Tianhua Liu,Shiwei Zhang,Junjie Huang,Ding‐Jiang Xue,Shihe Yang,Xiangyue Meng
标识
DOI:10.1002/adma.202403413
摘要
Abstract The rapid development of the Internet of Things (IoT) has accelerated the advancement of indoor photovoltaics (IPVs) that directly power wireless IoT devices. The interest in lead‐free perovskites for IPVs stems from their similar optoelectronic properties to high‐performance lead halide perovskites, but without concerns about toxic lead leakage in indoor environments. However, currently prevalent lead‐free perovskite IPVs, especially tin halide perovskites (THPs), still exhibit inferior performance, arising from their uncontrollable crystallization. Here, a novel adhesive bonding strategy is proposed for precisely regulating heterogeneous nucleation kinetics of THPs by introducing alkali metal fluorides. These ionic adhesives boost the work of adhesion at the buried interface between substrates and perovskite film, subsequently reducing the contact angle and energy barrier for heterogeneous nucleation, resulting in high‐quality THP films. The resulting THP solar cells achieve an efficiency of 20.12% under indoor illumination at 1000 lux, exceeding all types of lead‐free perovskite IPVs and successfully powering radio frequency identification‐based sensors.
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