The optical properties of vanadium pentoxide doped with aluminum

Authors

DOI:

https://doi.org/10.33910/2687-153X-2025-6-4-188-195

Keywords:

vanadium pentoxide, thin film doping, optical band gap, band structure of V2O5, spectrophotometry

Abstract

This paper investigates the effect of the post-transition metal aluminum (Al) on the optical properties and band gap of thin V2O5 films. The transmission spectra of V2O5 thin films with varying Al concentrations were measured via spectrophotometry; the extinction coefficient spectra were calculated, and the optical band gap values were determined. Al doping was found to decrease the band gap of V2O5 films for both direct and indirect allowed interband transitions. The paper also provides an interpretation of the observed changes during alloying.

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Published

24.12.2025

Issue

Section

Physics of Semiconductors