Alternative Method for Studying Color Centers in CsCl Thin Films

TL;DR

This paper introduces an unconventional approach using Tauc's method to analyze color centers in CsCl thin films, linking optical and structural properties to better understand vacancy effects.

Contribution

It presents a novel application of Tauc's method for studying color centers and models the correlation between optical properties and lattice size in CsCl films.

Findings

Color centers influence optical properties of CsCl films.

Structural and optical properties are interrelated.

Modeling reveals vacancy effects on optical behavior.

Abstract

The optical properties of cesium chloride (CsCl) are changed with presence of vacancies in the crystal structure giving rise to what is called as "color centers". We have unconventionally adopted Tauc's method to determine the characteristic color centers and have modeled the correlation among the film optical properties and lattice size, highlighting the interrelation between the structural and optical properties of alkali halide films.