Study of effect the particle size on CdS optical properties as solar cell

Abstract

In this work, one can make theoretical studies to show the effect of the particle size on semiconductor properties. We chose Cadmium Sulphide CdS because it is a unique semiconductor material used in a wide range of modern applications [1]. An example of what can be applied by using CdS is the manufacture of solar cells because it has distinct electronic and optical properties. It is also known that solar cells have become an indispensable source of energy in the world. We design one layer of bulk CdS and one layer of Nano CdS within the visible region (300-800 nm) [Air\bulk CdS\Air] and [Air\ Nano CdS\Air]. The results show that the transmittance equal T= 53 at 550 nm for bulk CdS at normal incidence and for Nano CdS with particle size 3nm the transmittance is T= 75.4 and transverse-electric (S- Polarized) and transverse-magnetic (P- Polarized) transmittances are TE=71 and TM= 79 at non-normal incidence (θ=27ᵒ).