Elimination of Interfacial Lattice Mismatch and Detrimental Reaction by Self-Assembled Layer Dual-Passivation for Efficient and Stable Inverted Perovskite Solar Cells

被引:152
作者
Zhang, Jiaqi [1 ]
Yang, Jia [1 ]
Dai, Runying [2 ]
Sheng, Wangping [1 ]
Su, Yang [1 ]
Zhong, Yang [1 ]
Li, Xiang [1 ]
Tan, Licheng [1 ]
Chen, Yiwang [1 ,2 ]
机构
[1] Nanchang Univ, Coll Chem & Chem Engn, Inst Polymers & Energy Chem IPEC, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China
[2] Jiangxi Normal Univ, Inst Adv Sci Res iASR, Key Lab Fluorine & Silicon Energy Mat & Chem, Minist Educ, 99 Ziyang Ave, Nanchang 330022, Jiangxi, Peoples R China
基金
中国国家自然科学基金;
关键词
dual-passivation; interfacial reaction; lattice mismatch; perovskite solar cells; self-assembled small-molecules; PERFORMANCE; CRYSTALLIZATION; MONOLAYER; STABILITY; NIOX;
D O I
10.1002/aenm.202103674
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Interfacial lattice mismatch and adverse reaction are the key issues hindering the development of nickel oxide (NiOx)-based inverted perovskite solar cells (PVSCs). Herein, a p-chlorobenzenesulfonic acid (CBSA) self-assembled small-molecule (SASM) is adopted to anchor NiOx and perovskite crystals to endow dual-passivation. The chlorine terminal of SASMs can provide growth sites for perovskite, leading to interfacial strain release. Meanwhile, the sulfonic acid group from SASMs can passivate surface defects of NiOx, conducive to charge carrier extraction. In addition, the self-assembled layer inhibits the adverse interfacial reaction by preventing NiOx contact with perovskite. Therefore, the NiOx/CBSA-based PVSCs obtain a champion power conversion efficiency (PCE) of 21.8%. Of particular note, the unencapsulated devices can retain above 80% of their initial PCE values after storage in a nitrogen atmosphere for 3000 h, in air with a relative humidity of 50-70% for 1000 h, and heating at 85 degrees C for 800 h, respectively.
引用
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页数:10
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