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Silver Doping Effects on ZnTe Thin Films by Thermal Evaporation Technique | OMICS International | Abstract
ISSN: 2169-0022

Journal of Material Sciences & Engineering
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Research Article

Silver Doping Effects on ZnTe Thin Films by Thermal Evaporation Technique

Nazar Abbas Shah1*, Syed AA2 and Murrawat A3
1Department of Physics, Thin Films Technology (TFT) Research Laboratory, COMSATS Institute of Information Technology, , Islamabad 40000, Pakistan
2Punjab Education Department, , Lahore, Pakistan
3Riphah international university, Islamabad, Pakistan
*Corresponding Author: Nazar Abbas Shah, Department of Physics, Thin Films Technology (TFT) Research Laboratory, COMSATS Institute of Information Technology, Islamabad 40000, Pakistan, Tel: +923215105363, Email: [email protected]

Received Date: Sep 14, 2017 / Accepted Date: Oct 16, 2017 / Published Date: Oct 26, 2017

Citation: Nazar AS, Syed AA, Murrawat A (2017) Silver Doping Effects on ZnTe Thin Films by Thermal Evaporation Technique. J Material Sci Eng 6: 388.DOI: 10.4172/2169-0022.1000388

Copyright: © 2017  . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 
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Abstract

Zinc telluride (ZnTe) thin films were fabricated by thermal evaporation method on corning glass substrates. ZnTe thin films were doped with silver (Ag) by dipping in low concentrated solution (0.2 g/200 ml) of AgNO3 × H2O at room temperature. X-ray diffraction technique was used to investigate the structural behavior of ZnTe samples. Optical investigations were done by using spectrophotometer. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to analyze the surface and composition of the thin film samples respectively. Electrical investigations were done by using Van Der Pauw and Hall measurement system. It was found that prepared samples showed polycrystalline structure with <111> as preferred orientation. Optical study showed that with increasing thickness, grain size increased but optical transmission and energy band gap were decreased. It was observed that value of resistivity of these samples decreased with increasing thickness and Ag composition. The results were compared before and after Ag doping in ZnTe thin films samples for the solar cell applications.

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