KCl Treatment of CdS Electron-Transporting Layer for Improved Performance of Sb<sub>2</sub>(S,Se)<sub>3</sub> Solar Cells

doi:10.1021/acsami.3c09500

	KCl Treatment of CdS Electron-Transporting Layer for Improved Performance of Sb₂(S,Se)₃ Solar Cells
	Liu, Aoxing 3; Tang, Rongfeng 3; Huang, Lei 3; Xiao, Peng 3; Dong, Yizhe 3; Zhu, Changfei 3; Wang, Hong 1; Hu, Linhua 2; Chen, Tao 3
刊名	ACS APPLIED MATERIALS & INTERFACES
	2023-10-04
卷号	15
关键词	Sb-2(S,Se)(3) antimony selenosulfide KCl interface engineering solar cell
ISSN号	1944-8244
DOI	10.1021/acsami.3c09500
通讯作者	Wang, Hong(wanghong82@ustc.edu.cn) ; Chen, Tao(tchenmse@ustc.edu.cn)
英文摘要	Antimony sulfoselenide (Sb2(S,Se)(3)) is a promising light absorption material because of its high photoabsorption coefficient, appropriate band gap, superior stability, and abundant elemental storage. As an emerging solar material, hydrothermal deposition of Sb2(S,Se)(3) solar cells has enabled a 10% efficiency threshold, where cadmium sulfide (CdS) is applied as an electron transport layer (ETL). The high-efficiency Sb2(S,Se)(3) solar cells largely employ CdS as the ETL. In terms of efficiency improvement, there are two questions regarding the CdS substrate: (1) the high roughness of CdS grown on F-doped tin oxide glass which increases the roughness of the absorber layer and (2) the low conductivity of CdS films because of low purity of CdS film grown by chemical bath deposition. In this study, we demonstrate an effective potassium chloride (KCl) post-treatment to modify the CdS ETL for improving the Sb2(S,Se)(3 )solar cell efficiency. We found that KCl plays dual roles that reduce roughness and enhance conductivity of the CdS films, thus acquiring a maximum efficiency of 9.98%, which is 9.2% higher than the control device. This study provides a new method for the surface engineering of CdS layer to improve the morphological and electrical properties, which is significant for improving the performance of CdS-based thin-film solar cells.
资助项目	National Natural Science Foundation of China[2019YFA0405600] ; National Key Research and Development Program of China[21KZS212] ; Institute of Energy, Hefei Comprehensive National Science Center ; Collaborative Innovation Program of Hefei Science Center, CAS
WOS关键词	PASSIVATION ; FILMS
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:001079407100001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Institute of Energy, Hefei Comprehensive National Science Center ; Collaborative Innovation Program of Hefei Science Center, CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/133538]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Hong; Chen, Tao
作者单位	1.Univ Sci & Technol China, Dept Environm Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat,CAS, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Liu, Aoxing,Tang, Rongfeng,Huang, Lei,et al. KCl Treatment of CdS Electron-Transporting Layer for Improved Performance of Sb₂(S,Se)₃ Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2023,15.
APA	Liu, Aoxing.,Tang, Rongfeng.,Huang, Lei.,Xiao, Peng.,Dong, Yizhe.,...&Chen, Tao.(2023).KCl Treatment of CdS Electron-Transporting Layer for Improved Performance of Sb₂(S,Se)₃ Solar Cells.ACS APPLIED MATERIALS & INTERFACES,15.
MLA	Liu, Aoxing,et al."KCl Treatment of CdS Electron-Transporting Layer for Improved Performance of Sb₂(S,Se)₃ Solar Cells".ACS APPLIED MATERIALS & INTERFACES 15(2023).