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http://dx.doi.org/10.5695/JKISE.2008.41.1.028

Properties of CdS Thin Films Prepared by Chemical Bath Deposition as a Function of Thiourea/CdAc2 Ratio in Solution  

Song, Woo-Chang (Research Institute of BINT New Technology, Chungju National University)
Publication Information
Journal of the Korean institute of surface engineering / v.41, no.1, 2008 , pp. 28-32 More about this Journal
Abstract
In this paper CdS thin films, which were widely used window layer of the CdS/CdTe and the CdS/$CuInSe_2$ heterojunction solar cell, were grown by chemical bath deposition, which is a very attractive method for low-cost and large-area solar cells, and the structural, optical and electrical properties of the films was studied. As the thiourea/$CdAc_2$ mole ratio was increased, the deposition rate of CdS films prepared by CBD was increased due to increasing reaction velocity in solution and the optical bandgap was increased at higher thiourea/$CdAc_2$ mole ratio due to larger grain size and continuous microstructure. The minimum resistivity of the films was at thiourea/$CdAc_2$ mole ratio of 3.
Keywords
CBD; CdS thin films; thiourea/$CdAc_2$ ratio; SOLAR cell;
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