Author:
Lin Xuesong,Wang Yanbo,Su Hongzhen,Qin Zhenzhen,Zhang Ziyang,Chen Mengjiong,Yang Min,Zhao Yan,Liu Xiao,Shen Xiangqian,Han Liyuan
Abstract
AbstractPerovskite solar cells (PSCs) are taking steps to commercialization. However, the halogen-reactive anode with high cost becomes a stumbling block. Here, the halogen migration in PSCs is utilized to in situ generate a uniform tunneling layer between the hole transport materials and anodes, which enriches the options of anodes by breaking the Schottky barrier, enabling the regular PSCs with both high efficiency and stability. Specifically, the regular PSC that uses silver iodide as the tunneling layer and copper as the anode obtains a champion power conversion efficiency of 23.24% (certified 22.74%) with an aperture area of 1.04 cm2. The devices are stable, maintaining 98.6% of the initial efficiency after 500 h of operation at the maximum power point with continuous 1 sun illumination. PSCs with different tunneling layers and anodes are fabricated, which confirm the generality of the strategy.
Funder
Shanghai Jiao Tong University
Publisher
Springer Science and Business Media LLC
Subject
Electrical and Electronic Engineering,Surfaces, Coatings and Films,Electronic, Optical and Magnetic Materials
Cited by
3 articles.
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