화학공학소재연구정보센터
Applied Surface Science, Vol.256, No.9, 2837-2840, 2010
Catalyst-free synthesis of novel brush-shaped ZnO particles by a simple oxidation in air
Brush-shaped ZnO particles were synthesized by controlling the growth time in the direct melt oxidation process of Al-Zn mixture in air at atmospheric pressure. Particles with two kinds of structures were formed. One was consisted of nanowires grown along [0001] direction at the six corners and the center of (0001) basal plane on hexagonal ZnO microrod. The other was constructed by nanobelts between the corner-nanowires as well as nanowires at the corners on ZnO microrod. The structural configuration that the nanowires and the nanobelts have a well coherent orientation alignment with the base microrod implies that the brush-shaped ZnO is single crystal. Room temperature PL spectrum of the brush-shaped ZnO particles displayed predominant green emission with a wavelength of 510 nm. (C) 2009 Elsevier B. V. All rights reserved.