Computer Science
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5633..308c&link_type=abstract
Advanced Materials and Devices for Sensing and Imaging II. Edited by Wang, Anbo; Zhang, Yimo; Ishii, Yukihiro. Proceedings of
Computer Science
Scientific paper
In this paper, SnS films were cathodically electrodeposited on ITO glass substrates from aqueous solution containing 5mM SnSO4 and 25mM Na2S2O3 with pH of 2-3. When the deposition potential (E) was varied from -0.60 to -1.1V vs SCE, the corresponding SnS films were characterized with X-ray diffractograms, microstructure and composition analysis. It was found that, the composition ratio Sn/S of the film varied with E, the ratio Sn/S significantly increased and exceeded 1 at E more cathodic than -0.75V vs SCE, and the ratio Sn/S significantly decreased and was less than 1 at E larger than -0.7V vs SCE. The stoichiometric SnS film was synthesized at -0.72~-0.75V vs SCE . The structural and optical properties of the film have been studied. The X-ray diffraction pattern of the film showed that it was polycrystalline and of orthorhombic structure. The estimated optical bandgap energy was 1.31eV.
Chen Guonan
Chen Yanqing
Cheng Shuying
Huang Cichang
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