Journal
JOURNAL OF SAUDI CHEMICAL SOCIETY
Volume 20, Issue 5, Pages 553-560Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jscs.2014.11.004
Keywords
Thin films; Chemical synthesis; Optical properties; Electrical properties; Antibacterial activity
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Nanocrystalline Fe doped Mn3O4 thin films were deposited by successive ionic layer adsorption and reaction method onto glass substrates. The X-ray diffraction study revealed that Fe doped Mn3O4 films are nanocrystalline in nature. The morphological investigations were carried out by using field emission scanning electron and atomic force microscopy studies. The optical absorption measurements showed that Mn3O4 films exhibit direct band gap energy of the order of 2.78 eV and it increased to 2.89 eV as the percentage of Fe doping in it increases from 0 to 8 wt.%. The room temperature electrical resistivity of Mn3O4 increases from 1.84 x 10(3) to 2.64 x 10(4) Omega cm as Fe doping increases from 0 to 8 wt.%. The SILAR grown Mn3O4 showed antibacterial performance against Escherichia coli bacteria which improved remarkably with doping. (C) 2014 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
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