Characterization of basic physical properties of Sb2Se3 and its relevance for photovoltaics

• Published in: Frontiers of Optoelectronics Vol. 10; no. 1; pp. 18 - 30
• Main Authors: Chen, Chao, Bobela, David C., Yang, Ye, Lu, Shuaicheng, Zeng, Kai, Ge, Cong, Yang, Bo, Gao, Liang, Zhao, Yang, Beard, Matthew C., Tang, Jiang
• Format: Journal Article
• Language: English
• Published: Beijing Higher Education Press 01.03.2017; Springer Nature B.V; Springer
• Subjects: Antimony compounds; antimony selenide; Basic converters; Biomedical Engineering and Bioengineering; Carrier lifetime; Defects; Diffusion length; Electrical Engineering; Electrical properties; Energy conversion efficiency; Engineering; lifetime; MATERIALS SCIENCE; mobility; Optical properties; Photovoltaic cells; Physical properties; Physics; Research Article; Sb2Se3; Selenides; Solar cells; SOLAR ENERGY; Thin films; 介电各向异性; 光电; 功率转换效率; 性能表征; 物理特性; 电学性质; 薄膜太阳能电池; 载流子寿命; antimony selenide (Sb; Se; mobility; defects; lifetime; ); diffusion length
• ISSN: 2095-2759; 2095-2767
• DOI: 10.1007/s12200-017-0702-z

Antimony selenide （SbzSe3） is a promising absorber material for thin film photovoltaics because of its attractive material, optical and electrical properties. In recent years, the power conversion efficiency （PCE） of Sb2Se3 thin film solar cells has gradually enhanced to 5.6%. In this article, we systematically studied the basic physical properties of Sb2Se3 such as dielectric constant, anisotropic mobility, carrier lifetime, diffusion length, defect depth, defect density and optical band tail states. We believe such a comprehensive characterization of the basic physical properties of Sb2Se3 lays a solid foundation for further optimization of solar device performance.