中文版 | English
Title

Enhanced efficiency and stability in Sn-based perovskite solar cells with secondary crystallization growth

Author
Corresponding AuthorSong,Haisheng
Publication Years
2021-03-01
DOI
Source Title
ISSN
2095-4956
Volume54Pages:414-421
Abstract

The conversion efficiencies reported for Tin (Sn) halide-based perovskite solar cells (PSCs) fall a large gap behind those of lead halide-based PSCs, mainly because of poor film quality of the former. Here we report an efficient strategy based on a simple secondary crystallization growth (SCG) technique to improve film quality for tin halide-based PSCs by applying a series of functional amine chlorides on the perovskite surface. They were discovered to enhance the film crystallinity and suppress the oxidation of Sn remarkably, hence reduce trap state density and non-irradiative recombination in the absorber films. Furthermore, the SCG film holds the band levels matching better with carrier transport layers and herein favoring charge extraction at the device interfaces. Consequently, a champion device efficiency of 8.07% was achieved along with significant enhancements in V and J, in contrast to 5.35% of the control device value. Moreover, the SCG film-based devices also exhibit superior stability comparing with the control one. This work explicitly paves a novel and general strategy for developing high performance lead-free PSCs.

Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First
ESI Research Field
CHEMISTRY
Scopus EID
2-s2.0-85087414161
Data Source
Scopus
Citation statistics
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/140684
DepartmentDepartment of Materials Science and Engineering
前沿与交叉科学研究院
Affiliation
1.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG),Southern University of Science and Technology,Shenzhen,No. 1088, Xueyuan Rd.,518055,China
2.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,Luoyu Road 1037,430074,China
3.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
4.Schulich Faculty of Chemistry Russell Berrie Nanotechnology,Institute Solid State Institute,Technion Haifa,32000,Israel
First Author AffilicationSouthern University of Science and Technology
First Author's First AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Jin,Zhixin,Yu,Bin Bin,Liao,Min,et al. Enhanced efficiency and stability in Sn-based perovskite solar cells with secondary crystallization growth[J]. Journal of Energy Chemistry,2021,54:414-421.
APA
Jin,Zhixin.,Yu,Bin Bin.,Liao,Min.,Liu,Di.,Xiu,Jingwei.,...&He,Zhubing.(2021).Enhanced efficiency and stability in Sn-based perovskite solar cells with secondary crystallization growth.Journal of Energy Chemistry,54,414-421.
MLA
Jin,Zhixin,et al."Enhanced efficiency and stability in Sn-based perovskite solar cells with secondary crystallization growth".Journal of Energy Chemistry 54(2021):414-421.
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