Abstract
Cu2ZnSnS4 thin films were deposited using spray pyrolysis deposition technique. The effect of deposition temperature and film thickness on various physical properties of Cu2ZnSnS4 thin films was studied. The structural study using X-ray diffraction technique revealed that the crystallinity of films was improved on increasing substrate temperature and film thickness. Energy-dispersive X-ray spectroscopy analysis revealed near-stoichiometric film composition. The atomic force microscope images showed formation of smooth, compact and uniform Cu2ZnSnS4 thin films over substrate surface. The X-ray photoelectron spectroscopy characterizations confirm the oxidation states of the elements in CZTS as 1+, 2+, 4+ and 2− for copper, zinc, tin and sulfur, respectively. Energy band gap was estimated to be 1.56 eV, indicating that Cu2ZnSnS4 compound has absorbing properties favorable for applications for solar cell devices.
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Acknowledgements
This research work is supported by the Department of Science and Technology, India, under DST-FIST (SR/FST/PSI-173/2012) program. Authors are thankful to Director, The Institute of Science, Mumbai, for encouragement and providing the necessary facilities. Authors are also thankful to INUP, as a part of the reported work (characterization) that was carried out at the IITBNF, IITB, under INUP which is sponsored by DeitY, MCIT, Government of India.
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Sawant, J.P., Kale, R.B. (2020). Study on Spray-Deposited Cu2ZnSnS4 Thin Films: Deposition and Physical Properties. In: Singh, S., Ramadesigan, V. (eds) Advances in Energy Research, Vol. 1. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-15-2666-4_12
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DOI: https://doi.org/10.1007/978-981-15-2666-4_12
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