Influence of stabilizing agent on dip coating of Cu2ZnSnS4 thin film

In the present study, Cu2ZnSnS4 (CZTS) thin films with different amount of Triethanolamine (0 μl, 30 μl, 150 μl and 300 μl) as a stabilizing agent in 200 ml precursor solution have been synthesized on glass substrate using a simple dip coating technique followed by annealing in nitrogen atmosphere at 300 °C for 1 h with 10 °C/min ramping rate. The influence of different amounts of Triethanolamine (TEA) on CZTS films are assessed through studies on phase formation, structural information, morphology, compositions and band gap energy which are obtained using X-Ray Diffraction, Raman Spectroscopy, Scanning Electron Microscopy, Energy Dispersive Spectroscopy and UV-Vis spectroscopy respectively. 30 μl of TEA addition is found to generate void free evenly spread stoichiometric CZTS film with a narrow Raman CZTS vibrational mode at 329 cm− 1 and energy band gap of 1.47 eV.