Effect of Co2+ and Ni2+-doped zinc borate nano crystalline powders by co-precipitation method

Title
Effect of Co2+ and Ni2+-doped zinc borate nano crystalline powders by co-precipitation method
Author(s)
심재술벤카타레디G.V.S.S. Sarma[G.V.S.S. Sarma]P. Narayana Murthy[P. Narayana Murthy]R.V.S.S.N. Ravikumar[R.V.S.S.N. Ravikumar]
Keywords
OPTICAL-ABSORPTION; FT-IR; GLASSES; NICKEL; FIELDS; COPPER; RAMAN
Issue Date
201505
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v.142, pp.279 - 285
Abstract
A simple co-precipitation method has been used for the synthesis of Co2+ and Ni2+-doped zinc borate nanopowders. X-ray diffraction (XRD), Fourier transform infrared (FT-IR), UV/Vis absorption, Scanning electron microscope (SEM) with EDS and photoluminescence (PL) spectroscopies techniques has been employed for their characterization. Powder X-ray diffraction data reveals that the crystal structure belongs to monoclinic for both as-prepared samples. SEM images showed surface morphology of the prepared samples. Optical absorption spectra showed the characteristic bands of doped ions in octahedral site symmetry. From the optical absorption data crystal field and inter-electronic repulsion parameters are evaluated. The FT-IR spectra showed the characteristic vibrational bands related to ZnO, BO3 and BO4 molecules. Photoluminescence spectra exhibited the emission bands in ultraviolet and blue regions. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/32418http://dx.doi.org/10.1016/j.saa.2015.02.008
ISSN
1386-1425
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공과대학 > 기계공학부 > Articles
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