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Influence of plasma parameters and substrate temperature on the structural and optical properties of CdTe thin films deposited on glass by laser ablation

In the pulsed laser deposition of thin films, plasma parameters such as energy and density of ions play an important role in the properties of materials. In the present work, cadmium telluride thin films were obtained by laser ablation of a stoichiometric CdTe target in vacuum, using two different v...

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Bibliographic Details
Published in:Journal of applied physics 2015-09, Vol.118 (12)
Main Authors: Quiñones-Galván, J. G., Camps, Enrique, Campos-González, E., Hernández-Hernández, A., Santana-Aranda, M. A., Pérez-Centeno, A., Guillén-Cervantes, A., Santoyo-Salazar, J., Zelaya-Angel, O., de Moure-Flores, F.
Format: Article
Language:English
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Summary:In the pulsed laser deposition of thin films, plasma parameters such as energy and density of ions play an important role in the properties of materials. In the present work, cadmium telluride thin films were obtained by laser ablation of a stoichiometric CdTe target in vacuum, using two different values for: substrate temperature (RT and 200 °C) and plasma energy (120 and 200 eV). Structural characterization revealed that the crystalline phase can be changed by controlling both plasma energy and substrate temperature; which affects the corresponding band gap energy. All the thin films showed smooth surfaces and a Te rich composition.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4931677