Upgraded antisolvent engineering enables 2D@3D quasi core-shell perovskite for achieving stable and 21.6％ efficiency solar cells

Fengyou Wang ¹Jinyue Du ²Yuhong Zhang ²Meifang Yang ²Donglai Han ³Lili Yang ¹Lin Fan ¹Yingrui Sui ¹Yunfei Sun ²Jinghai Yang¹

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作者信息

1. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education,Jilin Normal University,Changchun 130103,China;National Demonstration Center for Experimental Physics Education,Jilin Normal University,Siping 136000,China;Key Laboratory of Preparation and Application of Environmental Friendly Materials,Ministry of Education,Jilin Normal University,Changchun 130103,China
2. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education,Jilin Normal University,Changchun 130103,China
3. School of Materials Science and Engineering,Changchun University of Science and Technology,Changchun 130022,China
折叠

Abstract

Perovskite solar cells(PSCs)have become a promising alternative to sustainable energy due to their high power conversion efficiency(PCE)and low-cost processing.However,the practical applications of PSCs are still limited by the trade-off between high performance and poor stability under operation.Here,a 2D@3D perovskite with quasi core-shell architecture linking the superiorities of both two-dimensional(2D)and three-dimensional(3D)perovskite is prepared through a novel upgraded antisolvent approach.The basic properties as well as the phase distribution and the charge transport behavior of the 2D@3D perovskite were systematically elucidated.A high PCE of 21.60％for 2D@3D PSCs is achieved due to the enhanced surface and grain boundaries passivation,improved energy level alignment and efficient holes transport.The 2D@3D perovskite device without encapsulation shows significantly improved stability at the room temperature(90％of initial PCE for 45 d with a relative humidity of 50％±5％)and relative thermal conditions(83％of initial PCE for 200 h under 85℃).Compared with traditional 3D PSCs,it proved that such 2D@3D perovskite configuration is an effective architecture for enhancing efficiency and improving stability and therefore will facilitate the further industrialization of PSCs.

Key words

Low-cost processing/Surface and grain boundaries/Two-dimensional materials/Efficiency/Stability

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基金项目

National Natural Science Foundation of China(61775081)

National Natural Science Foundation of China(11904127)

National Natural Science Foundation of China(22075101)

National Natural Science Foundation of China(61904066)

National Natural Science Foundation of China(61705020)

National Natural Science Foundation of China(51902126)

Program for the Development of Science and Technology of Jilin Province(20200801032GH)

Program for the Development of Science and Technology of Jilin Province(20190103002JH)

Thirteenth Five-Year Program for Science and Technology of Education Depart-ment of Jilin Province(JJKH20190998KJ)

Thirteenth Five-Year Program for Science and Technology of Education Depart-ment of Jilin Province(JJKH20200417KJ)

Thirteenth Five-Year Program for Science and Technology of Education Depart-ment of Jilin Province(JJKH20190550KJ)

Special Project of Industrial Technology Research and Development in Jilin Province(2019C042-2)

Construction Program for Innovation Research Team of Jilin Normal University(201703)

出版年

2021

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量47

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