Optical properties of ZnO/MgF2 bilayer thin films prepared by PVD technique

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Malek A.H. Muhi

Abstract

Zinc Oxide (ZnO) is considered as one of the best materials already used as a window layer in solar cells due to its antireflective capability. The ZnO/MgF2 bilayer thin film is more efficient as antireflective coating. In this work, ZnO and ZnO/MgF2 thin films were deposited on glass substrate using pulsed laser deposition and thermal evaporation deposition methods. The optical measurements indicated that ZnO thin layer has an energy gap of (3.02 eV) while ZnO/MgF2 bilayer gives rise to an increase in the energy gap. ZnO/MgF2 bilayer shows a high energy gap (3.77 eV) with low reflectance (1.1-10 %) and refractive index (1.9) leading to high transmittance, this bilayer could be a good candidate optical material to improve the performance of solar cell window.

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1.
Muhi MA. Optical properties of ZnO/MgF2 bilayer thin films prepared by PVD technique. IJP [Internet]. 2018 Oct. 30 [cited 2024 Dec. 24];16(38):76-82. Available from: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/11

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