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Solar Cell Efficiency Exceeding 25% through Rb-Based Perovskitoid Scaffold Stabilizing the Buried Perovskite Surface
Chen, Jinbo1; Dong, Hua1,4; Li, Jingrui3; Zhu, Xinyi1; Xu, Jie5; Pan, Fang3; Xu, Ruoyao1; Xi, Jun1; Jiao, Bo1; Hou, Xun1; Wei Ng, Kar2; Wang, Shuang Peng2; Wu, Zhaoxin1,4
2022-10-14
Source PublicationACS Energy Letters
ISSN2380-8195
Volume7Issue:10Pages:3685-3694
Abstract

The reduction of defect density in perovskite solar cells (PSCs) is the key to suppress the nonradiative recombination, which is critical to achieve high device efficiency. The buried surfaces of perovskite films are more prone to deterioration and defect formation than the bulk and upper surfaces of perovskite films due to continuous solvent and temperature erosion processes. Here, a buried-interface strategy using Rb-based perovskitoids is proposed. The introduction of rubidium halide results in the formation of a deuterogenic Rb-based perovskitoid "scaffold", which effectively enhances the crystallization of the perovskite film and passivates the defects at the buried surface. With this Rb-based perovskitoid strategy, the power conversion efficiency of device increases from 23.26% to 25.14%, thus providing a simple and effective way to improve the performance of PSCs.

DOI10.1021/acsenergylett.2c01661
URLView the original
Language英語English
Scopus ID2-s2.0-85139412301
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Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliation1.Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Shaanxi Key Lab of Information Photonic Technique, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
2.Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, 999078, Macao
3.Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, International Center for Dielectric Research, School of Electronic Science and Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
4.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China
5.College of Science, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, China
Recommended Citation
GB/T 7714
Chen, Jinbo,Dong, Hua,Li, Jingrui,et al. Solar Cell Efficiency Exceeding 25% through Rb-Based Perovskitoid Scaffold Stabilizing the Buried Perovskite Surface[J]. ACS Energy Letters,2022,7(10):3685-3694.
APA Chen, Jinbo,Dong, Hua,Li, Jingrui,Zhu, Xinyi,Xu, Jie,Pan, Fang,Xu, Ruoyao,Xi, Jun,Jiao, Bo,Hou, Xun,Wei Ng, Kar,Wang, Shuang Peng,&Wu, Zhaoxin.(2022).Solar Cell Efficiency Exceeding 25% through Rb-Based Perovskitoid Scaffold Stabilizing the Buried Perovskite Surface.ACS Energy Letters,7(10),3685-3694.
MLA Chen, Jinbo,et al."Solar Cell Efficiency Exceeding 25% through Rb-Based Perovskitoid Scaffold Stabilizing the Buried Perovskite Surface".ACS Energy Letters 7.10(2022):3685-3694.
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