Influence of anionic concentration and deposition temperature on formation of wurtzite CdS thin films by in situ chemical reaction method

被引:10
作者
Chu, Juan [1 ]
Jin, Zhengguo [1 ]
Wang, Weidong [1 ]
Liu, Hui [1 ]
Wang, Dalong [1 ]
Yang, Jingxia [2 ]
Hong, Zhanglian [2 ]
机构
[1] Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China
[2] Zhejiang Univ, State Key Lab Silicon Mat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
关键词
In situ synthesis; CdS nanocrystalline thin films; Molar concentration; Deposition temperature; Annealing treatment; HETEROJUNCTION SOLAR-CELLS; STIMULATED-EMISSION; NANOCRYSTALS; GROWTH; LAYER; CBD;
D O I
10.1016/j.jallcom.2011.11.141
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
Nanocrystalline CdS thin films were deposited on glass substrates by a new in situ chemical reaction synthesis using cadmium precursor solid films as reaction source and sodium sulfide based solutions as anionic reaction medium. The influence of the S: Cd molar concentrations in separate cationic and anionic precursor solutions and the deposition temperature on the crystallized structure, morphologies, chemical component and optical properties of the deposited CdS films was investigated by X-ray diffraction, field emission scanning electron microscope, energy dispersive X-ray analysis and UV-Vis spectra measurements. The results show that CdS thin films deposited by the in situ chemical reaction synthesis have wurtzite structure with (0 0 2) plane preferential orientation and this tendency gradually enhances with increase of S: Cd molar concentration ratio. The deposition rate was 80-100 nm thickness per cycle in the range of deposition temperature from 20 degrees C to 60 degrees C. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码:54 / 60
页数:7
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