期刊
JOURNAL OF CRYSTAL GROWTH
卷 280, 期 1-2, 页码 161-167出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jcrysgro.2005.03.047
关键词
nanostructures; chemical vapor deposition processes; semiconducting II-VI materials
In a carbothermal reduction process, it has been proved theoretically and experimentally that a critical limit of oxygen with addition to a conventional Ar gas is necessary to get ZnO nanostructures. More than I ppm of oxygen was required to fabricate ZnO nanowires. Related local thermodynamics and kinetics were considered and discussed. This oxygen-assisted carbothermal reduction process enables an evolution of not only ZnO nanowires but also interesting nanorods and nanosheets in series with controlling oxygen partial pressure in the range of 10(-6)-10(-2). (c) 2005 Elsevier B.V. All rights reserved.
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