Turkish Journal of Computer and Mathematics Education
Journal license

Journal

Turkish Journal of Computer and Mathematics Education


Volume
& Issue

Volume 9, Issue 3


Published
on

December 17, 2018


Pages

1433-1440


DOI

Article

ANNEALING EFFECTS ON CdHgTe THIN FILMS: ADJUSTING Hg CONTENT AND ENHANCING CRYSTAL QUALITY


Authors

Shivali Chauhan* Affiliation:
Department of Physics, M. S. J. Govt. P.G. College, Bharatpur 321001, Rajasthan, India


Abstract

This study explores the electrodeposition of CdHgTe thin films using a complex electrochemical bath comprising CdCl2, HgCl2, and pre-reacted metallic tellurium in concentrated nitric acid, with acetonitrile as a complexing agent. The films are deposited on SnO2 coated glass substrates using a three-electrode system, where deposition potentials are adjusted to vary Hg content without altering bath composition. After deposition, films undergo annealing at 300°C under rough vacuum conditions, enhancing crystalline quality and X-ray diffraction peak intensity. Results show that deposition at different potentials affects film quality, with annealing mitigating deterioration observed at more negative potentials. Structural analysis reveals cubic (fcc) crystal structure with predominant (111) orientation, unaffected by annealing temperature up to 300°C. This approach offers a novel, cost- effective method to tailor CdHgTe film properties, crucial for various optoelectronic applications.


Keywords

Electrodeposition, CdTe, Thin Films, Cyclic Voltammograms, CH3CN


Citation

Chauhan, S. (2018). ANNEALING EFFECTS ON cdhgte THIN FILMS: ADJUSTING hg CONTENT AND ENHANCING CRYSTAL QUALITY. Turkish Journal of Computer and Mathematics Education, 9(3), 1433–1440.

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