Some Optical Properties of (ZnTe) Thin Films Prepared by Thermal Evaporation Technique on a Glass Substrate

Authors

Abdulla Saeed Ba-Sabiah, Department of Physics, Faculty of Education, Hadhramout University, Sieyoun , Yemen.
Mohamed Ali Seyam, Department of Physics, Faculty of Education, Ain Shams University, Egypt

Abstract

Thin films of Zinc telluride (ZnTe)were deposited by thermal evaporation technique on a glass substrate. The optical obtained data were analyzed using a numerical analysis program which showed that the transition mechanism involved indirectly allows transition since the best line dependence is obtained from a plot of 0.5 ( )  h versus photon energy ( ) h . The bandgap decreased from 1.15 to 0.96 eV as the substrate temperature varied from 410 to 510 K. Such behaviour is attributed to unsaturated defects, which are confirmed by XRD examinations. PACS:78.20.Ci, 71.30.+h, 72.90. +y

Recommended Citation

Ba-Sabiah, Abdulla Saeed and Seyam, Mohamed Ali (2017) "Some Optical Properties of (ZnTe) Thin Films Prepared by Thermal Evaporation Technique on a Glass Substrate," Hadhramout University Journal of Natural & Applied Sciences: Vol. 14: Iss. 1, Article 8.
Available at: https://digitalcommons.aaru.edu.jo/huj_nas/vol14/iss1/8