Unified model for the studies of band gap of nanosolids with their varying shape and size

Abstract

We have studied the variation of band gap of low dimensional solids using modified cohesive energy model with their varying shape and size by extending bond energy model for cohesive energy. We have incorporated almost all the parameters required for providing a more thorough relationship between the properties of nanoparticles and the band gap. The band gap of the compound semiconducting nanoparticles, ZnX and CdX (X = S, Se, Te) have been calculated. It has been observed that the band gap of nanoparticles increases when the particle size reduces, and the shape become more asymmetrical.