Solid-state selenium diffusion processing to prepare Sb2(S,Se)3 film for planar heterojunction solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-02-14 DOI:10.1016/j.solmat.2025.113495

Wangwei Chen , Guoliang Gao , Litao Zhao , Conghui Liu , Juanjuan Qi , Guang Zhu

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引用次数: 0

Abstract

Excellent optoelectronic properties make antimony selenosulfide an appealing light absorbering material in the solar cell research. Herein, we present a novel solid-state selenium diffusion (SSD) method featuring the reaction of solid-state selenium with precursor film to prepare Sb₂(S,Se)₃ film for efficient solar cells. The effects of reaction temperature and selenium layer thickness on the structure, composition and morphology of deposited film were investigated. Appropriate selenization can eliminate structural defects, while excessive selenization can lead to porous uncompact, loose morphology. Moreover, the band-gap, photo response and carrier transport characteristics which are highly correlated with device performance dependent on the S/Se ratio of antimony selenosulfide Sb₂(S,Se)₃ can be adjusted by SSD process (selenium layer thickness and reaction temperature). The optimized Sb₂(S,Se)₃ solar cell exhibited an efficiency of 6.37 % with a high J_sc of 19.17 mA/cm² and FF of 55.53 % under AM 1.5 illumination.

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来源期刊

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.