锚固
材料科学
钙钛矿(结构)
钝化
聚合物
图层(电子)
能量转换效率
掺杂剂
纳米技术
降级(电信)
化学工程
光电子学
复合材料
兴奋剂
结构工程
工程类
电信
计算机科学
作者
Hongtao Lai,Xingchen Tang,Leyu Bi,Binqiang Tian,Huanhuan Wang,Xiaofei Ji,Qiang Fu
出处
期刊:Solar RRL
[Wiley]
日期:2024-01-02
卷期号:8 (4)
标识
DOI:10.1002/solr.202300961
摘要
The hygroscopic dopants used in Spiro‐OMeTAD hole‐transport materials (HTMs) in n –i– p perovskite solar cells (PSCs) inevitably cause device degradation. Herein, two polymer interface materials based on lead anchoring groups are developed. It is found that 2D polymers 2DP‐BT and 2DP‐Por can form dense films and exhibit excellent hydrophobicity. Importantly, 2DP‐Por can passivate the surface defects through noncovalent interactions, reducing nonradiative recombination loss. After introducing these polymer interface materials between the perovskite layer and the HTM layer, the optimized devices using 2DP‐Por and 2DP‐BT achieve champion power conversion efficiency of 24.12% and 23.29%, respectively, and the stability is significantly improved. These results indicate that developing polymer interface materials containing lead anchoring groups can improve PSC efficiency and stability and elucidate critical molecular design rules for interface materials.
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