Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 32, Issue -, Pages 1-5Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2014.12.073
Keywords
Chemical bath deposition; FeS; Mackinawite; Thin films; Band gap
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The growth of monophasic iron sulfide thin films onto glass substrates has been achieved by chemical bath deposition at acidic values of pH. Powder X-ray diffraction (p-XRD) confirms the deposition of tetragonal FeS (mackinawite) with preferred orientation along (001) plane. The crystallite size estimated by Scherrer equation was found to be 14 nm. Scanning electron microscopy (SEM) shows the formation of nanoflakes as base layer and nanoflowers as top layer. Energy Dispersive X-ray (EDX) analysis of the deposited iron sulfide thin films shows the iron to sulfur ratio close to 1:1 confirming the deposition of FeS. UV-vis absorption spectroscopy showed a blueshift due to the nanosize crystallites FeS with a band gap of 1.87 eV. (C) 2015 Elsevier Ltd. All rights reserved.
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