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Development of tin (II) sulfide nanostructured films with uniform surface morphology by two-step growth process

Nandanapalli, Koteeswara Reddy and Mudusu, Devika and Lingandhinne, Raja Mohan Reddy and Mitta, Sekhar Babu and Reddy, Gunasekhar K and Karuppannan, Ramesh and Whang, Dongmok (2019) Development of tin (II) sulfide nanostructured films with uniform surface morphology by two-step growth process. In: JOURNAL OF ALLOYS AND COMPOUNDS, 770 . pp. 600-607.

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Official URL: http://dx.doi.org10.1016/j.jallcom.2018.08.137

Abstract

Tin (II) sulfide (SnS), one of the most abundant materials, is being considered as an absorber material for the development of low-cost and nontoxic solar cell devices. In this direction, we have developed nanocrystalline films of SnS with uniform morphology on different substrates by adopting two-step thermal evaporation process. The surface studies show that irrespective of substrate nature, the as-grown SnS films possess uniform surface-morphology with well-defined facets. Structural studies reveal that SnS films grown on various substrates possess an orthorhombic crystal structure. However, as compared to other substrates, the structures developed on sapphire and copper exhibit (010) as preferential growth direction. From the electrical measurements, it is noticed that the films deposited on highly-conductive substrates consist of low electrical resistance, whereas the films are slightly resistive on insulating substrates. Based on these investigations it is emphasized that high-quality SnS films can be developed with uniform morphology on any substrates by adopting our two-step process. (C) 2018 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belong to ELSEVIER SCIENCE SA
Keywords: SnS films; Earth-abundant material; Nanocrystallites; Thermal evaporation; Low-resistive films; Low-cost solar cell devices
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 26 Nov 2018 15:11
Last Modified: 26 Nov 2018 15:11
URI: http://eprints.iisc.ac.in/id/eprint/61158

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