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.
@article{arxiv.0708.3438,
title = {Alternative Method for Studying Color Centers in CsCl Thin Films},
author = {Kuldeep Kumar and P. Arun and R. Kumar and N. C. Mehra and L. Makinistian and E. A. Albanesi},
journal= {arXiv preprint arXiv:0708.3438},
year = {2007}
}