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Synthesis of ZnO Nanowires by Pulsed Laser Deposition in Furnace

  • Kyung Ah Jeon (a1), Hyo Jeong Son (a2), Jong Hoon Kim (a3), K. H. Yoo (a4) and Sang Yeol Lee (a5)...

Abstract

ZnO nanowires (NWs) were fabricated on Au coated sapphire (0001) substrates by using a pulsed laser deposition (PLD) system in vacuum furnace with a Q-switched Nd:YAG laser. ZnO NWs have various size and shape with a substrate position inside a furnace, and their morphologic construction is reproducible. Scanning electron microscopy (SEM) images indicate that the diameters of ZnO NWs ranged from 100 to 150 nm and the average length was greater than 3 μm. Room-temperature photoluminescence spectra of the NWs show the near band-edge emissions and the deep-level green light emissions. The formation mechanism of the NWs is discussed.

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