Initializing film homogeneity to retard phase segregation for stable perovskite solar cells-Reference-Cited by-同舟云学术

Initializing film homogeneity to retard phase segregation for stable perovskite solar cells

Published:2022-11-18 Issue:6621 Volume:378 Page:747-754
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bai Yang¹²^ORCID,Huang Zijian³,Zhang Xiao¹,Lu Jiuzhou¹,Niu Xiuxiu¹^ORCID,He Ziwen⁴^ORCID,Zhu Cheng¹,Xiao Mengqi¹,Song Qizhen¹,Wei Xueyuan¹,Wang Chenyue¹,Cui Zhenhua¹,Dou Jing¹,Chen Yihua¹^ORCID,Pei Fengtao¹^ORCID,Zai Huachao³^ORCID,Wang Wei⁴,Song Tinglu¹^ORCID,An Pengfei⁵^ORCID,Zhang Jing⁵^ORCID,Dong Juncai⁵^ORCID,Li Yiming⁶,Shi Jiangjian⁶,Jin Haibo¹^ORCID,Chen Pengwan⁷,Sun Yuchao⁸,Li Yujing¹^ORCID,Chen Haining⁹,Wei Zhongming¹⁰^ORCID,Zhou Huanping³^ORCID,Chen Qi¹²^ORCID

Affiliation:

1. Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.

2. Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, P. R. China.

3. Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China.

4. Center for Research on Intelligent Perception and Computing, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, P. R. China.

5. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China.

6. Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China.

7. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China.

8. Auner Technology Co., Ltd., Beijing 100084, P. R. China.

9. School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China.

10. State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, P. R. China.

Abstract

The mixtures of cations and anions used in hybrid halide perovskites for high-performance solar cells often undergo element and phase segregation, which limits device lifetime. We adapted Schelling’s model of segregation to study individual cation migration and found that the initial film inhomogeneity accelerates materials degradation. We fabricated perovskite films (FA 1–x Cs x PbI 3 ; where FA is formamidinium) through the addition of selenophene, which led to homogeneous cation distribution that retarded cation aggregation during materials processing and device operation. The resultant devices achieved enhanced efficiency and retained >91% of their initial efficiency after 3190 hours at the maximum power point under 1 sun illumination. We also observe prolonged operational lifetime in devices with initially homogeneous FACsPb(Br 0.13 I 0.87 ) 3 absorbers.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference49 articles.

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