Exploring the pressure-induced optoelectronic response of the Cd0.50Zn0.50Se alloy

Abstract

This study focuses on the optoelectronic response of the Cd_0.50Zn_0.50Se alloy using density functional theory at varying pressures ranging from 0 to 100 GPa. Incorporating pressure significantly impacted the electronic and optical characteristics and an increase in pressure from 0 to 50 GPa yields an increase in the bandgap energy from 2.19 to 3.03 eV. The linear absorption coefficient of the alloy is observed to cover the broad light spectrum in the visible to ultraviolet regions due to optical and electronic transitions occurring by changing the pressure. An increase in static refractive index and static dielectric constant is observed. The other optical parameters, such as optical conductivity, extinction coefficient, energy loss function, and reflection, are also studied as a function of pressure. These materials are anticipated to be used in designing pressure-sensing devices.