材料科学
钝化
钙钛矿(结构)
电极
光电子学
光伏系统
能量转换效率
平面的
钙钛矿太阳能电池
图层(电子)
纳米技术
化学工程
电气工程
计算机科学
化学
工程类
计算机图形学(图像)
物理化学
作者
Huachao Zai,Jie Su,Cheng Zhu,Yihua Chen,Yue Ma,Pengxiang Zhang,Sai Ma,Xiao Zhang,Haipeng Xie,Rundong Fan,Zijian Huang,Nengxu Li,Yu Zhang,Yujing Li,Bai Yang,Ziyan Gao,Xueyun Wang,Jiawang Hong,Kangwen Sun,Jingjing Chang,Huanping Zhou,Qi Chen
出处
期刊:Joule
[Elsevier]
日期:2021-08-01
卷期号:5 (8): 2148-2163
被引量:61
标识
DOI:10.1016/j.joule.2021.06.001
摘要
With the rapid progress of perovskite solar cells (PSCs), both high efficiency and sufficient stability are required simultaneously for their real-life application, wherein interfaces play an essential role. In this work, we develop sandwiched electrode buffer (SEB) with respect to the hole-transport layer (HTL), wherein dual back surface fields are implemented at two interfaces in relevance. The SEB bridges the absorber to the back electrode with the desired band alignment and multi-defect passivation effects, which stabilize the perovskite, HTL, and metal electrodes. Accordingly, planar n-i-p PSCs with SEB achieve an efficiency of 23.9% (certified 23.4%). Notably, they exhibit a remarkable operational stability with only a 3% efficiency decline for 2,000 h maximum power point tracking under 1-Sun illumination. Furthermore, the devices also show excellent thermal stability and humidity stability. Therefore, the SEB configuration boosts both efficiency and stability of PSCs, which paves the way for the commercialization of perovskite optoelectronics.
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