Fabrication and Characterization of CdS Thin Films: Study of the adhesion of II-VI compound semiconductors for applicati
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Fabrication and Characterization of CdS Thin Films: Study of the adhesion of Il-VI compound semiconductors for applications to light emitting and absorbing devices Hyun Shik Kang, Gi Eun Cho, Kyung Wha Kim Department. of Physics Education, Chonbuk Nat'l Univ. Chonju, Chonbuk, 560-756, S. Korea and Peter D. Persans Department of Physics, Applied Physics, and Astronomy and Center for Integrated Electronics Rensselaer Polytechnic Institude Troy, NY, 12180, U.S.A Abstract The structural and optoelectronic properties of polycrystalline CdS films, fabricated by three different methods, are compared to one another for the purpose of preparing CdTe/CdS solar cells. The three methods were: alternated spraying of cation and anion solution at room temperature, spray pyrolysis, and chemical bath deposition. We studied the surface morphology and crystal quality and texture by scanning electron and optical microscopy and x-ray diffraction. All films had a well-developed wurtzite structure. Films grown by the alternated-spray method and the chemical bath method consist of randomly-oriented crystallites with dimensions
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