Fabrication and characterisation of multipod ZnO nanostructures by CVD on Al2O3-coat Si (111) substrate

Multipod ZnO nanostructures were fabricated on Al₂O₃-coat Si (111) substrate by chemical vapour deposition method at 1050°C using the mixture of ZnO and C powders as source materials. X-ray diffraction, scanning electron microscopy, transmission electron microscopy and high-resolution transmission electron microscopy were used to synthesise the structure, morphology and microstructure of the multipod ZnO nanostructures. X-ray photoelectron spectroscopy was used to investigate the chemical composition of the multipod ZnO nanostructure. Finally, the growth mechanism of the multipod ZnO nanostructures was also discussed.