The Characterizations and Studies of Chemical Bath Deposited Ni3Pb2S2 Thin Films for Solar Cell

Abstract

Currently, thin films have high potential for use in optoelectronic and solar cell applications
due to appropriate band gap value. There are many deposition techniques have been used to
prepare thin films including physical and chemical method. Chemical bath deposition
technique was used to produce thin films. This technique has many advantages such as can
control film thickness, quality of sample, and deposition rate. In this work, Ni3Pb2S2 films were
deposited onto glass slide from aqueous solutions. Characterization of obtained films were
investigated by using various tools. X-ray diffraction, atomic force microscopy and UV-visible
spectrophotometer were employed to investigate the structure, topography and optical
properties of films. Photovoltaic parameters were studied using a simulated AM1.5 Global
spectrums. The obtained nanostructured thin films indicated band gap of 1.4 eV. Optical
properties exhibited higher absorption in ultraviolet region, while lower absorption could be
observed in infrared region. These ternary compounds indicated efficiency of 2.7 % based on
power conversion efficiency testing.