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Study some optical properties and structures of pure thin films after and before effect by laser | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 12, Issue 1, 2007, Pages 129-133 | ||
| Author | ||
| Hani H. Ahmed | ||
| Abstract | ||
| In this research study the effect of irradiation by (CW) CO2 laser on some optical properties of (CdS) pure thin films of (1)µm thickness has been prepared by heat evaporation method. (X-Ray) diffraction technique showed the prepared films before and after irradiation are ploy crystalline hexagonal structure, optical properties were include recording of absorbance spectra for prepared films in the range of (400-1000) nm wave lengths, the absorption coefficient and the energy gap were calculated before and after irradiation, finally the irradiation affected (CdS) thin films by changing its color from the Transparent yellow to dark rough yellow and decrease the value absorption coefficient also increase the value of energy gap. | ||
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