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Effect of Irradiation on Optical Properties of TiO2 Thin Films | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 3, 2012, Pages 149-156 | ||
| Author | ||
| Wafaa M. Saleh | ||
| Abstract | ||
| In this investigation, Titanium (Ti) thin films were prepared by thermal evaporation vacuum technique on glass substrate at room temperature, After that rapid thermal oxidation technique used to obtain TiO2 thin films, The process occur at (450Co) in (1min).Optical properties like absorption coefficient, energy gap, extinction coefficient and refractive index were studied before and after irradiation by (Co60 ) for a period of 28 days. We observed the value of the energy gap decrease after irradiation from (3.5-3.35 eV) for direct allowed transition and from (2.5-2.25 eV) for direct forbidden transition | ||
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