SUN Xue-bai, ZHANG Xi-qing, DU Peng，CHANG Xiao-wei, WANG Jun-ling, HUANG Shi-hua
Institute of Optoelectronics Technology, Laboratory of Materials for Information Storage and Display, Beijing Jiaotong University, Beijing 100044, China
Abstract：CdS thin films were prepared by chemical bath deposition (CBD) at 90 ℃. The influence of annealing and CdCl2 treatment on CBD-CdS thin film was studied. XRD and SEM were used to study the crystal structure and surface morphology of the films. The untreated CBD-CdS films had poor crystallinity; the CdS thin film made with annealing treatment had cubic crystallinity but small grain size. After the CdCl2 treatment, these films recrystallized to the hexagonal phase, resulting in a better crystallinity, and smooth surface morphology. Optical properties were studied by absorption spectrum. The energy gap of the films was found to decrease by annealing, and the CBD-CdS made with CdCl2 treatment had a lower density of planar defects. In conclusion, the CdCl2 treatment can improve the properties of the CdS thin films.
孙学柏，张希清，杜鹏，常笑薇，王俊玲，黄世华. CdS薄膜的化学沉积法制备及其特性的研究[J]. 光谱学与光谱分析, 2007, 27(01): 32-34.
SUN Xue-bai, ZHANG Xi-qing, DU Peng，CHANG Xiao-wei, WANG Jun-ling, HUANG Shi-hua . Study on the Property of CBD-CdS Thin Films. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(01): 32-34.
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