Synthesis of ZnO nanowires and nanosheets by an O2-assisted carbothermal reduction process

被引:57
作者
Park, JH [1 ]
Choi, YJ [1 ]
Park, JG [1 ]
机构
[1] Korea Inst Sci & Technol, Mat Sci & Technol Div, Seoul 130650, South Korea
关键词
nanostructures; chemical vapor deposition processes; semiconducting II-VI materials;
D O I
10.1016/j.jcrysgro.2005.03.047
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
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.
引用
收藏
页码:161 / 167
页数:7
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