Abstract :
Thin films of Cu2ZnSnS4 (CZTS) have been successfully deposited on soda lime glass by spin coating technique. Raw material of sol-gel solution (precursors) consists of copper (II) acetate monohydrate, zinc (II) acetate dihydrate, tin (II) chloride dihydrate and Thiourea. CZTS thin films have been grown on clean soda-lime glass substrates at different annealing temperatures in the air for a period of 1 hour. The structural properties of these films have been studied by using X-ray diffraction XRD. The results of X-ray diffraction showed that all the CZTS films are polycrystalline (Hexagonal – Wurtzite) structure and preferred orientation along (100) to all sample, and the increasing annealing temperature led to an increase in the grain size, whereas dislocation density and micro strain decreases with the increase of annealing temperatures. The surface morphology of the thin films has been studied by using atomic force microscopes (AFM).The results of the atomic force microscope showed that the films grown by this technique have good crystalline and homogeneous surface. The Root Mean Square (RMS)and surface roughness values of thin films are decreased with increasing annealing temperature.
Author Name : Hassan J. Akbar, Ali I. Salih & Rafea A. Munef
Keywords: Cu2ZnSnS4, Thin films, Annealing Temperature, Sol-Gel method, Structural Properties
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