Muhunthan, N. and Singh, Om Pal and Singh, V. N. (2013) Growth of CZTS by co-sputtering and sulfurization for solar cell applications. In: Conference on Micro/Nano Materials, Devices, and Systems, 2013, Melbourne, Victoria, Australia.

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Abstract

Earth abundant copper-zinc-tin-sulfide (CZTS) is an important class of materials for the development of low cost and sustainable thin film solar cells. Fabrications of CZTS thin film is carried out by magnetron co-sputtering the metallic and sulfide targets and post deposition sulfurization. We sputter Cu using DC power and ZnS and SnS using RF power. In order to study its structured properties and to establish the best growth conditions, Raman spectroscopy and Glazing incidence XRD analysis were carried out. These studies indicated that the grown CZTS film have a kesterite structure with good crystallinity and a strong preferential orientation along (112) plane. SEM analysis revealed a homogeneous, compact surface morphology and large grains throughout the thickness of the film. The grown CZTS film demonstrated an optical absorption coefficient higher than similar to 6x10(4)cm(-1) and optical band gap of 1.45 eV. The sheet resistance, carrier concentration, mobility and activation energy of the CZTS film were 2.52 k Omega, 1.86 x 10(18) cm(-3), 1.92 cm(2)V(-1)s(-1), and 37.8 meV, respectively. These optical and electrical properties are suitable for thin film solar cell fabrication.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	copyright for this article belongs to M/s SPIE-International Society for Optical Engineering
Subjects:	Engineering > Electronics and Electrical Engineering Materials Science Nanoscience/ Nanotechnology Optics
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	17 Nov 2021 05:33
Last Modified:	17 Nov 2021 05:33
URI:	http://npl.csircentral.net/id/eprint/3203

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