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Fabrication of CDS Thin Films Using Continuous Wave Laser Evaporation

  • E.W. Tenpas (a1), K. D. Vuong (a1), S. Orloff (a1), J.G. Fagan (a1), V. Wu (a1) and X.W. Wang (a1)...

Abstract

We report new results on continuous wave Nd: YAG laser deposition of Cadmium Sulfide (CdS) thin films. Substrates were soda-lime silicate (SLS) glass, silica glass, silicon, alumina, and copper coated formvar sheets. As-deposited films were characteristically mixtures of cubic and hexagonal phases. X-ray diffraction analysis reveals that two different grain size groups are present. As revealed by SEM micrographs, films had smooth surface morphology. Transmission electron microscopy analysis reveals that grain sizes were extremely small. Also, semiconductive behavior was noted.

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1 Wang, X.W., Spitulnik, F., Campbell, B, Noble, R., Hapanowicz, R.P., Condrate, R.A. Sr., Fu, L.P., Petrou, A., “Continuous wave NdYAG laser deposition of CdS thin films,” Thin Solid Films, 218, 1992.
2 Wang, X.W., and Finnigan, D.J., “Continuous wave Nd: YAG laser deposition of CdS thin films with cubic phase,” SPIE Vol. 1856 Laser Radiation Photophysics, 1993
3 Finnigan, J., “Effects of CW Nd: YAG laser deposition on phase formation in CdS thin films,” M.S. Thesis, Alfred University, Alfred, NY, 1993
4 Spitulnik, F, Wang, X.W., Noble, R, Finnigan, D.J., Amarkoon, V.W.R., and Snyder, R.L., “Continuous wave Nd: YAG laser deposition of predominately cubic phase CdS thin films,” Journal of Materials Synthesis and Processing, Vol. 1, No. 5, 1993
5 Noble, R., “Laser deposition of cadmium sulfide thin films,” MS Thesis, Alfred University, Alfred, NY, 1993
6 Wang, X.W., Finnigan, D.J., Noble, R., Spitulnik, F., McGinnis, P., Fu, L.P., Petrou, A., “Laser deposition of cubic and hexagonal structured CdS thin films,” SPIE Vol. 1793, Integrated Optics and Microstructures, 1992
7 Wang, X.W., Finnigan, D.J., Noble, R., Mattocks, P, “CW Nd: YAG laser deposition of CdS thin films, “Materials Research Society Symposium Proceedings, Vol. 281, 1993.
8 Measured by Hoelzer, A.T. and Hoelzer, D.T.

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