Preparation and characterization of Sb2Se3 thin films by electrodeposition and annealing treatment

被引:81
作者
Lai, Yanqing [1 ,2 ]
Chen, Zhiwei [1 ]
Han, Can [1 ]
Jiang, Liangxing [1 ]
Liu, Fangyang [1 ]
Li, Jie [1 ]
Liu, Yexiang [1 ]
机构
[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China
[2] Cent S Univ Shenzhen, Res Inst, Engn Res Ctr High Performance Battery Mat & Devic, Shenzhen 518057, Peoples R China
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
Sb2Se3; Thin films; Electrodeposition; Annealing; Solar cells; ANTIMONY SELENIDE; OPTICAL-PROPERTIES; DEPOSITION;
D O I
10.1016/j.apsusc.2012.08.046
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Antimony selenide (Sb2Se3) thin films were prepared on SnO2 coated glass substrates from acidic aqueous solution by potentiostatic electrodeposition and then post annealed at 300 degrees C in Ar atmosphere. Cyclic voltammetry (CV), energy dispersive X-ray spectroscopy (EDS), and environmental scanning electron microscope (ESEM) studies were performed on as-deposited Sb2Se3 thin films to obtain suitable electrodeposition conditions. The annealed film shows improved crystallinity with a basic structure of orthorhombic Sb2Se3, and exhibits an optical absorption coefficient of higher than 105 cm(-1) in the visible region and an optical band gap of 1.04 +/- 0.01 eV. Photoelectrochemical (PEC) tests confirm the p-type conductivity and good photovoltaic conversion characteristics of the annealed film. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码:510 / 514
页数:5
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