Temperature-Induced Structure and Morphological Transformation in SnS Prepared by a Chemical Vapor Deposition Method

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Abstract:

SnS thin films were deposited at different temperatures on silicon and quartz plates through directly elementary reaction via a simple chemical vapor deposition (CVD) process. The as-prepared products have a transformation of morphology from plate-like to granule-like when the temperature increased. A mechanism involving two competitive factors, surface energy and binding energy, was proposed to understand their growth. The products prepared at low temperature were single crystal while the films made in high temperature are polycrystal, the optical band gap (1.2~2.1ev) and the Sn:S atom ratios increases as the deposited temperature increases.

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286-290

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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