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Thermal Annealing Effect on Optical and Electrical Properties of Zinc Selenide (ZnSe) Thin Films

The impact factor of ZnSe thin films in an aqueous solution of zinc acetate and hydrazine hydrate (HH) using the non-toxic complexing agent EDTA along with the films were annealed at 200, 300, and 400°C. This research aimed to employed XRD analysis, optical measurements, and electrical resistivity measurements to study the ZnSe thin films, respectively. The use of these complementary techniques allowed for a compressive understanding of the effect of annealing on the physical properties of the films. The ZnSe thin films are annealed in an oven at various temperatures which are characterized by structural and optical properties. An increase in annealing temperature distorted the nanocrystillinity and made the ZnSe thin films amorphous. The variation of resistivity indicates the semiconducting nature of the thin film. The electrical resistivity of the films decreases with increasing annealing temperature. In this study, the Band gap of ZnSe decreases from 2.8eV to 2.65eV with the increase in temperature and decreases for as-deposited to 2.5eV. As a result of this research ZnSe is used for certain applications, it has been widely utilized in various optoelectronic devices such as thin film solar cells, green-blue light emitting diodes, lasers, photo-luminescent, and electro-luminescent devices.

Chemical Bath Deposition, ZnSe Thin Film, Band Gap, Solar Cells

APA Style

Esubalew Yehualaw Melaku, Tizazu Abza Abshiro, Wubamlak Nigussie. (2023). Thermal Annealing Effect on Optical and Electrical Properties of Zinc Selenide (ZnSe) Thin Films. American Journal of Physics and Applications, 11(2), 40-46.

ACS Style

Esubalew Yehualaw Melaku; Tizazu Abza Abshiro; Wubamlak Nigussie. Thermal Annealing Effect on Optical and Electrical Properties of Zinc Selenide (ZnSe) Thin Films. Am. J. Phys. Appl. 2023, 11(2), 40-46. doi: 10.11648/j.ajpa.20231102.12

AMA Style

Esubalew Yehualaw Melaku, Tizazu Abza Abshiro, Wubamlak Nigussie. Thermal Annealing Effect on Optical and Electrical Properties of Zinc Selenide (ZnSe) Thin Films. Am J Phys Appl. 2023;11(2):40-46. doi: 10.11648/j.ajpa.20231102.12

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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