thin films were deposited by spin coating technique starting with non aqueous solution
containing cupric chloride (2M), zinc Chloride (1M), stannic chloride (1M) and thiourea (8M) dissolved
in 2-methoxy ethanol and few drops of monoethanolamine (MEA) were added. Clear yellow sol-gel was
formed after being stirred at 50°C for several minutes.
spin coater-300 was used to deposit the
CZTS film on properly cleaned soda lime glass substrate. The fabrication process of CZTS film by spin
4
coating technique is shown by flow chart.