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ARTICLE

Cohesive energy model for the optical properties in nanostructured materials of zinc sulfide and cadmium selenide

A. Mustafa^*, S. Turki Al-Rashid

Physics department, College of Education for pure Sciences, University of Anbar, Iraq

* Corresponding Author:

Chalcogenide Letters 2024, 21(5), 407-411. https://doi.org/10.15251/CL.2024.215.407

Received 23 February 2024; Accepted 10 May 2024;

Abstract

Applying the cohesive energy model, this research theoretically studies how the size of nanoparticles affects their optical characteristics. The findings demonstrate that optical characteristics are size-dependent for nanoparticles, with an exponentially growing energy gap for nanoparticles on a scale of less than 4 nm. As the size of nanoparticles is reduced, the absorption wavelength also decreases. Compounds undergo a transition to a higher energy spectral area (blue shift) when their wavelength decreases; this change can make these compounds effective in certain optical nanodevices.

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