Radical reinforced defect passivation strategy for efficient and stable MAPbI3 perovskite solar cells fabricated in air using a green anti-solvent process
|Corresponding Author||Chen，Jiangzhao; Liu，Xiaoyuan; Xu，Zong Xiang|
|Joint first author||Xie，Pengfei; Xiao，Hui|
Compared with traditional processes for perovskite solar cell (PSC) fabrication using toxic anti-solvents in an inert environment, the air process using a green anti-solvent is significantly more eco-friendly and economical. However, such perovskite films contain more defects owing to moisture and non-optimal anti-solvents. To solve this problem, a new radical-strengthened defect passivation strategy is proposed, for enhancing the electron density of Lewis bases to reduce defect states in perovskite films. By introducing a donor–acceptor structure and free radical to improve the electron donation ability of Cl groups, a stable radical derivative (OTTM) with methoxy and multiple Cl groups was designed and used as a green anti-solvent additive for perovskite passivation. The mechanisms of radical-enhanced defect passivation are uncovered by theoretical and experimental results. As a consequence, a 21% power conversion efficiency with high stability was achieved based on the air process with a green anti-solvent for MAPbI PSCs.
共同第一 ; Corresponding
National Key Research and Development Project from the Ministry of Science and Technology of China[2021YFB3800103] ; National Natural Science Foundation of China ; Major Program of Guangdong Basic and Applied Research["2019B121205001","2019B030302009"] ; Shenzhen-Hong Kong-Macau Science and Technology Plan C[SGDX20210823104205034]
|WOS Research Area|
Engineering, Environmental ; Engineering, Chemical
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Chemistry|
1.School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin,150001,China
2.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,Gansu,730070,China
5.Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education),College of Optoelectronic Engineering,Chongqing University,Chongqing,400044,China
|First Author Affilication||Department of Chemistry|
|Corresponding Author Affilication||Department of Chemistry; Southern University of Science and Technology|
Xie，Pengfei,Xiao，Hui,Qiao，Ying,et al. Radical reinforced defect passivation strategy for efficient and stable MAPbI3 perovskite solar cells fabricated in air using a green anti-solvent process[J]. CHEMICAL ENGINEERING JOURNAL,2023,462:142328.
Xie，Pengfei.,Xiao，Hui.,Qiao，Ying.,Qu，Geping.,Chen，Jiangzhao.,...&Xu，Zong Xiang.(2023).Radical reinforced defect passivation strategy for efficient and stable MAPbI3 perovskite solar cells fabricated in air using a green anti-solvent process.CHEMICAL ENGINEERING JOURNAL,462,142328.
Xie，Pengfei,et al."Radical reinforced defect passivation strategy for efficient and stable MAPbI3 perovskite solar cells fabricated in air using a green anti-solvent process".CHEMICAL ENGINEERING JOURNAL 462(2023):142328.
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