The Correlation of the Optical Properties of ZnO Thin Films - Benramache, Said;Lakel, Said;Chabane, Foued
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In the present work, we used the optical properties of pure and doped zinc oxide thin films as the n-type semiconductor. The thin films were deposited at different precursor molarities by ultrasonic spray and spray pyrolysis techniques also at different substrate temperatures, the ZnO doped with various dopant's such as Al, In, Co, Ni, Sn, V, Fe, F, Sn doped ZnO thin films. In this work the attention was focused on the presently new approach to calculate the optical gap energy and Urbach energies. The model proposed to calculate the band gap or the Urbach energies of undoped and doped ZnO thin…mehr

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Produktbeschreibung
In the present work, we used the optical properties of pure and doped zinc oxide thin films as the n-type semiconductor. The thin films were deposited at different precursor molarities by ultrasonic spray and spray pyrolysis techniques also at different substrate temperatures, the ZnO doped with various dopant's such as Al, In, Co, Ni, Sn, V, Fe, F, Sn doped ZnO thin films. In this work the attention was focused on the presently new approach to calculate the optical gap energy and Urbach energies. The model proposed to calculate the band gap or the Urbach energies of undoped and doped ZnO thin films were studied. The relation between the experimental data and theoretical calculation with precursor molarities suggests that the band gap or the Urbach energies are predominantly estimated by the band gap or the Urbach energies and the concentration of ZnO solution.
Autorenporträt
O Dr. Said Benramache nasceu na Argélia em 1981, recebeu o seu grau de D.Sc. em física da universidade de Mohamed Khider Biskra (Argélia), e o grau HDR em educação física. Tem mais de 100 trabalhos de investigação em revistas de renome internacional. É também editor associado de duas revistas internacionais.