Effects of γ-irradiation on the optical properties of a-(Sb0.1Ge0.3Se0.6) and Ag5(Sb0.1Ge0.3Se0.6)95 thin film material |
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Authors: | AM Salem SY Marzouk MS Selim |
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Affiliation: | a Electron Microscopy and Thin Film Department, National Research Center, Dokki, Cairo, Egypt b Helwan University, Faculty of Science, Cairo, Egypt |
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Abstract: | The amorphous behaviour of (Sb0.1Ge0.3Se0.6) and Ag5(Sb0.1Ge0.3Se0.6)95 chalcogenide thin film materials deposited at room temperature onto glass substrates by thermal evaporation process was investigated using X-ray diffraction technique. The surface morphology as well as the elemental chemical composition of the as-deposited films was investigated via scanning electron microscopy. The optical transmission and reflection spectra of as-deposited films and that exposed for different γ-dose were recorded at room temperature in the wavelength range of 600-2500 nm. Systematic studies of the refractive index, extinction coefficient and optical band gap have been presented as a function of the γ-dose. The dispersion of the refractive index for such films is discussed in terms of the single-oscillator Wemple-DiDomenico model, which was presented. |
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Keywords: | 61 80 68 55 J 78 66 68 60 B |
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