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Abstract
In this paper, we report for the first time tin oxide hollow nanostructures growth on cellulose acetate flexible substrates by sonochemical spin coating. SnO2 particles formed by microwave irradiation of stannous chloride solution in ethylene glycol, used as starting material. Particles were then dissolved in ethanol and ultrasonicated just before ejecting from the spray jet to the substrates placed on the spin coater. The spin rate was maintained at 5000rpm and the process was repeated for several times. All the samples were annealed at 80°C for 2 to 6h and characterized by structural, morphological and optical studies. All the peaks in the X-ray diffractograms are identified and indexed as tetragonal cassiterite structure. AFM and SEM confirm the formation of porous tube- like growth in vertical direction. Strong photoluminescence peak in the visible region makes these structures suitable for flexible optoelectronic applications.
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