Synthesis of SnO2 nanostructures by ultrasonic-assisted sol–gel method

Fluorine doped SnO 2 nanostructures were grown using ultrasonic assisted sol–gel method. The gel was obtained by dissolving stannous chloride in methanol with ammonium fluoride as dopant followed by irradiation with ultrasonic vibrations. Obtained samples were characterized by structural, morphologi...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2014-03, Vol.69 (3), p.617-624
Main Authors: Goswami, Y. C., Kumar, Vijay, Rajaram, P., Ganesan, V., Malik, Mohammad Azad, O’Brien, Paul
Format: Article
Language:English
Subjects:
Atomic force microscopy
Cassiterite
Ceramics
Chemistry
Chemistry and Materials Science
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Composites
Compressive properties
Electron microscopes
Exact sciences and technology
Fluorine
General and physical chemistry
Glass
Inorganic Chemistry
Materials Science
Microscopy
Nanostructure
Nanotechnology
Natural Materials
Optical and Electronic Materials
Original Paper
Raman spectra
Scanning electron microscopy
Sol-gel processes
Tin dioxide
Transmission electron microscopy
Ultrasonic testing
Ultrasonic vibration
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Summary:Fluorine doped SnO 2 nanostructures were grown using ultrasonic assisted sol–gel method. The gel was obtained by dissolving stannous chloride in methanol with ammonium fluoride as dopant followed by irradiation with ultrasonic vibrations. Obtained samples were characterized by structural, morphological and optical studies. All the peaks in the X-ray diffractograms are identified and indexed as tetragonal cassiterite structure. Negative slope of Williamson–Hall plots indicates compressive strain. Particle size of SnO 2 nanostructures is decreases with increases in concentration of fluorine doping. Atomic force microscopy, scanning electron microscopy and transmission electron microscopy studies confirm the formation of ring like porous structures and then hollow tube like growth with increase in the fluorine concentration. Peaks in Raman spectra also indicate strong confinement in SnO 2 particles. Distinct peaks in the PL spectra make the structure suitable for photovoltaic applications.
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-013-3241-0