Abstract
We have obtained the rod-like and sheet-like structures of tin oxide (SnO2) by carrying out the thermal evaporation of solid Sn powders with varying the O2 partial pressure. We have employed X-ray diffraction, scanning electron microscope, transmission electron microscope and photoluminescence (PL) spectroscopy to characterize the as-synthesized product. Higher O2 partial pressure in the synthesis process mainly gave rise to wider sheet-like structures, whereas lower O2 partial pressure facilitated the growth of rod-like structures. The product was single crystalline rutile structure. PL spectra exhibited the visible light emission.
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