Synthesis and characterization of VO2+ doped ZnO-CdS composite nanopowder

Title
Synthesis and characterization of VO2+ doped ZnO-CdS composite nanopowder
Author(s)
심재술G. Thirumala Rao[G. Thirumala Rao]B. Babu[B. Babu]R. Joyce Stella[R. Joyce Stella]V. Pushpa Manjari[V. Pushpa Manjari]R.V.S.S.N. Ravikumar[R.V.S.S.N. Ravikumar]벤카타레디
Keywords
OPTICAL-PROPERTIES; CORE/SHELL HETEROSTRUCTURES; SOLAR-CELLS; PHOTOLUMINESCENCE; LIGHT; MICROSTRUCTURE; NANOSTRUCTURES; NANOCOMPOSITES; ENHANCEMENT; TEMPERATURE
Issue Date
201502
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MOLECULAR STRUCTURE, v.1081, pp.254 - 259
Abstract
VO2+ doped ZnO-CdS composite nanopowder has been synthesized by chemical precipitation method. The prepared sample has been characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), FT-IR, photoluminescence (PL), optical absorption and EPR spectroscopy. From XRD pattern, average crystallite size is about 18 nm. SEM and TEM images showed sphere like structures. FT-IR spectrum indicates the presence of fundamental modes of ZnO, CdS and other functional groups. The PL spectrum of VO2+ doped ZnO-CdS composite nanopowder exhibits UV, blue and green emissions. Optical and EPR studies revealed the tetragonal compressed octahedral site symmetry for VO2+ ions. The bonding between VO2+ and its ligands is ionic. (C) 2014 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33596http://dx.doi.org/10.1016/j.molstruc.2014.10.044
ISSN
0022-2860
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공과대학 > 기계공학부 > Articles
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