Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 509, Issue 2, Pages 523-528Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.09.089
Keywords
Nanostructured materials; X-ray diffraction; Electron microscopy; Thermoelectric materials
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Funding
- UGC, New Delhi
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Cuprous oxide (Cu2O) dendrites were prepared by simple hydrothermal route at two different temperatures using starch as reducing and stabilizing agent. Scanning Electron Microscopy (SEM) revealed the alterations in morphology with reaction temperature and time. The spherical nanoparticles obtained at lower reaction temperature self-assembled into distinct dendritic nanostructures at high temperature. The mechanism of formation of dendrite over the polysaccharide template has been discussed. Transmission Electron Microscopy (TEM) revealed that the crystalline size of these dendrites in one dimension is about 50 nm. The nanoparticles were characterized by UV-vis and photoluminescence (PL) spectroscopy, X-ray diffraction (XRD), FT-IR and Thermal Gravimetry Analyzer (TGA). Impedance analysis of the nanostructures showed conductivity to be a function of temperature. (C) 2010 Elsevier B.V. All rights reserved.
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