Abstract
Multiform SnO2 microstructures were synthesized by a facile thermal evaporation of tin grains. Theproduct was characterized with a variety of techniques to obtain the structuraland optical information. Scanning electron microscopy (SEM) and transmissionelectron microscopy (TEM) images showed a large percentage of acute angle zigzagnanobelts with perfectly periodic morphology. High resolution transmission electronmicroscopy (HRTEM) images and selected area electron diffraction (SAED) patternsrevealed that the zigzag nanobelts were single crystalline and their zone axis wasalong the [010] crystal direction. The growth mechanism of zigzag nanobelts wasproposed based on TEM characterization and thermodynamic analysis. The zigzagnanobelts were deduced to be formed by changing the growth direction from to [101] or vice versa. The photoluminescence (PL) spectroscopy of the nanobelts showed a broadand strong luminescence emission centred at 550 nm.
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