Solution processed AgSbS2 film for efficient planar heterojunction solar cells

被引:23
|
作者
Zhang, Lijian [1 ,2 ]
Zhu, Changfei [1 ,2 ]
Chen, Tao [1 ,2 ]
机构
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China
[2] Hefei Comprehens Natl Sci Ctr, Ist Energy, Hefei, Peoples R China
基金
中国国家自然科学基金;
关键词
DEPOSITION;
D O I
10.1063/5.0064802
中图分类号
O59 [应用物理学];
学科分类号
摘要
AgSbS2 is a promising absorber material for photovoltaic cells because of its optimum bandgap, strong optical absorption, and excellent stability. Here, we report a spin-coating and annealing approach for the fabrication of AgSbS2 solar cells, where Ag-Sb-thiourea complex solution was prepared as the precursor solution. We identified that the annealing temperature crucially affected the phase composition, crystallinity, and surface morphology of the AgSbS2 film. We also probed the electronic structures and established a FTO/TiO2/AgSbS2/Spiro-OMeTAD/Au device structure. This device finally achieved an encouraging power conversion efficiency of 2.25%, which is highest efficiency in AgSbS2 solar cells. Our research opens up another prospect for pursuing high performance AgSbS2 thin film solar cells by adopting a solution processing method and planar heterojunction device structure.
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页数:7
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