Inderscience Publishers

Synthesis and random laser application of ZnO nano-walls: a review

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This review paper summarises briefly some important achievements of our recent research on the synthesis and novel applications of nanostructure ZnO such as honeycomb shaped 3-D (dimension) nano random-walls. A chemical reaction/vapour transportation deposition technique was employed to fabricate this structure on ZnO/SiO2/Si substrate without any catalyst and additive in a simple tube furnace to aim the low-cost and high qualified samples. Random laser action with strong coherent feedback at the wavelength between 375 nm and 395 nm has been firstly observed under 355 nm optical excitation with threshold pumping intensity of 0.38 MW/cm².

Keywords: ZnO, zinc oxide, nanowall structures, synthesis, vapour transportation deposition, random laser action, low threshold pumping, nanostructures, nanotechnology

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