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Issue 21, 2013
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Facile synthesis of carbon doped TiO2 nanowires without an external carbon source and their opto-electronic properties

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Abstract

The present study demonstrates a simple protocol for the preparation of one dimensional (1D) oxidized titanium carbide nanowires and their opto-electronic properties. The oxidized titanium carbide nanowires (Ox-TiC-NW) are prepared from TiC nanowires (TiC-NW) that are in turn synthesized from micron sized TiC particles using the solvothermal technique. The Ox-TiC-NW is characterized by X-ray diffraction, UV-Vis spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and Raman spectroscopy. Thermal oxidation of TiC-NW yields carbon doped TiO2-NW (C-TiO2-NW), a simple methodology to obtain 1D C-TiO2-NW. Temperature dependent Raman spectra reveal characteristic bands for TiO2-NW. Electrical characterization of individual C-TiO2-NW is performed by fabricating a device structure using the focused ion beam deposition technique. The opto-electronic properties of individual C-TiO2-NW demonstrate visible light activity and the parameters obtained from photoconductivity measurements reveal very good sensitivity. This methodology opens up the possibility of using C-TiO2-NW in electronic and opto-electronic device applications.

Graphical abstract: Facile synthesis of carbon doped TiO2 nanowires without an external carbon source and their opto-electronic properties

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Publication details

The article was received on 27 Jun 2013, accepted on 23 Aug 2013 and first published on 29 Aug 2013


Article type: Paper
DOI: 10.1039/C3NR03309K
Citation: Nanoscale, 2013,5, 10646-10652
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    Facile synthesis of carbon doped TiO2 nanowires without an external carbon source and their opto-electronic properties

    V. Kiran and S. Sampath, Nanoscale, 2013, 5, 10646
    DOI: 10.1039/C3NR03309K

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