Synthesis of corundum structure ITO nanocrystals by hydrothermal process at low pressure and low temperature |
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| Authors: | A. Solieman S. Alamri M. Aegerter |
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| Affiliation: | (1) Physics Department, Faculty of Science, Taibah University, PO Box 344, Madina, Saudi Arabia;(2) Coating Technology Department, Institute of New Materials (INM), Saarbrucken, Germany |
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| Abstract: | The corundum structures of In2O3:Sn (ITO) nanoparticles were synthesized by hydrothermal processing of InCl3 and SnCl4·5H2O precursor at low temperature of 250 °C and 40 bar pressure for 3 h. The precursor was precipitated in a white gel of InOOH. After drying at 150 °C in air, it was crystallized in orthorhombic structure. InOOH powder was transformed into dark-gray rhombohedral In2O3 by sintering at 420 °C in forming gas for 1 h. The samples were characterized by means of XRD, SEM, and TEM. The particle size of the resulted ITO powder was about 32 nm. |
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