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Single crystalline CO sub(3)O sub(4): Synthesis and optical properties

Crystals of CO sub(3)O sub(4) have been prepared from thermal decomposition of molecular precursors derived from salicylic acid and cobalt (II) acetate or chloride at 500 [degrees]C. A cubic phase CO sub(3)O sub(4) micro- and nanocrystals have been obtained. The as-synthesized products were characte...

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Published in:	Materials chemistry and physics 2014-04, Vol.144 (3), p.247-251
Main Author:	Hosny, Nasser Mohammed
Format:	Article
Language:	English
Subjects:	Acetates Chlorides Crystals Electron microscopes Energy gaps (solid state) Molecular structure Precursors Scanning electron microscopy
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creator	Hosny, Nasser Mohammed
description	Crystals of CO sub(3)O sub(4) have been prepared from thermal decomposition of molecular precursors derived from salicylic acid and cobalt (II) acetate or chloride at 500 [degrees]C. A cubic phase CO sub(3)O sub(4) micro- and nanocrystals have been obtained. The as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The images of electron microscopes showed octahedral crystals of CO sub(3)O sub(4). The volume and polarizability of the optimized structures of molecular precursors have been calculated and related to the particle size. The optical band gap of the obtained crystals has been measured. The results indicated two optical band gaps with values 2.65 and 2.95 eV for (E sub(g1)) (E sub(g2)), respectively.
doi_str_mv	10.1016/j.matchemphys.2013.12.022
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A cubic phase CO sub(3)O sub(4) micro- and nanocrystals have been obtained. The as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The images of electron microscopes showed octahedral crystals of CO sub(3)O sub(4). The volume and polarizability of the optimized structures of molecular precursors have been calculated and related to the particle size. The optical band gap of the obtained crystals has been measured. The results indicated two optical band gaps with values 2.65 and 2.95 eV for (E sub(g1)) (E sub(g2)), respectively.</abstract><doi>10.1016/j.matchemphys.2013.12.022</doi></addata></record>
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language	eng
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subjects	Acetates Chlorides Crystals Electron microscopes Energy gaps (solid state) Molecular structure Precursors Scanning electron microscopy
title	Single crystalline CO sub(3)O sub(4): Synthesis and optical properties
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