Optical transitions in CdTe thin films produced by hot- wall vacuum evaporation |
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| Affiliation: | 1. Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062, Hubei, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, China |
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| Abstract: | Optical properties of p-type CdTe films produced by the hot-wall evaporation technique were critically studied to obtain information on different parameters, e.g. refractive index and absorption coefficient. Variations in the parameters with incident photon energy indicated an indirect transition at a gap width of approximately 1.3 eV while the direct transition was observed at a gap width of approximately 1.5 eV. |
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