Web Release Date: December 21,
Synthesis of Ordered Ultrathin ZnO Nanowire Bundles on an Indium-Tin Oxide Substrate
and
Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 16 East Nan-Hu Road, Open Economic Zone, Changchun 130033, People's Republic of China, and Graduate School of the Chinese Academy of Sciences, People's Republic of China
Received September 29, 2007
Abstract:
Ultrathin ZnO nanowire bundles have been synthesized on an
indium-tin oxide substrate without any catalyst by using a simple
thermal evaporation method, where self-organized ZnO nanowire
bundles were grown on the hexagonal heads of ZnO nanocolumns.
The nanowires obtained typically have diameters of 8 nm, with
lengths extending to 0.25 
m. The size is the same order of
magnitude as the ZnO exciton Bohr radius (aB). Room-temperature
photoluminescence measurement shows a prominent peak at 374
nm (3.32 eV), which is about 100 meV blue-shifted from the bulk
ZnO emission.
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