Effective Defect Passivation via Molecular Interactions Based on Amine-Functionalized Ionic Liquid for Perovskite Solar Cells

被引：5
作者：
Chen, Zhaoyang [1 ,2 ]
Wang, Liang [3 ]
Fang, Junhui [2 ]
Saeed, Aamir [2 ]
Wang, Kangjun [1 ]
Miao, Qingqing [2 ,4 ,5 ]
机构：
[1] Shenyang Univ Chem Technol, Coll Chem Engn, Shenyang 110142, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
[3] Univ Electrocommun, Info Powered Energy Syst Res Ctr i PERC, Tokyo 1828585, Japan
[4] Henan Univ, Zhengzhou Inst Emerging Ind Technol, Longzihu New Energy Lab, Zhengzhou 450000, Peoples R China
[5] Langfang Inst Proc Engn, CAS, Langfang 065001, Peoples R China
来源：
ACS APPLIED ENERGY MATERIALS | 2023年 / 6卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Perovskite Solar Cells; Amine-FunctionalizedIonic Liquid; Defect Passivation; Molecular Interaction; Crystal Growth; PERFORMANCE; STABILITY; FILMS;
D O I：
10.1021/acsaem.3c01343
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：
Defectpassivation containing ionic liquids (ILs) on perovskitefilms has been proven to be an extremely effective strategy for highlyefficient perovskite solar cells (PSCs). However, the exact interactionmode between the ILs and perovskite crystals and the microcosmic mechanismof the structures of ILs on the devices are not clear. Here, we incorporatedan amine-functionalized IL for effective defect passivation on theperovskite films. The amine-functionalized IL interacts with Pb2+ and X (-) in perovskite crystals, whichcan effectively passivate defects and regulate the perovskite crystalgrowth, forming high-quality perovskite films. The microcosmic mechanisminvestigation reveals that the effective defect passivation and defectmigration suppression due to the amine-functionalized IL facilitate the improvement of the photovoltaic performance of the PSC devices.
引用
收藏
页码：8489 / 8494
页数：6
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