Abstract:
Copper Zinc Tin Sulfide (Cu2ZnSnS4 or CZTS) thin film have been deposited on Soda lime glass
substrates by a spin coater and annealed in air with different temperature varied from 300 – 500 °C. The
effect of annealing temperature on structural, optical, electrical, morphological and compositional
properties has been studied. The XRD study depicts that sharpness of the peak increases with annealing
temperature. The major peaks are observed at 28.74o, 33.2o, 47.7o and 56.6o with (112), (200), (220) and
(312) plane. Optical studies show relatively high absorption co-efficient within 104 - 105 cm-1. The band gap
energy (Eg) varies from 1.42 to 1.49 eV for CZTS thin film. Hall measurements show p type conductivity.
Further, SEM analysis revealed the surface texture of CZTS film. The EDX measurement for CZTS thin films
confirms the formation of CZTS which is Cu rich and Zn poor
