Synthesis of GaN-carbon composite nanotubes and GaN nanorods by arc discharge in nitrogen atmosphere

被引:163
作者
Han, WQ [1 ]
Redlich, P [1 ]
Ernst, F [1 ]
Rühle, M [1 ]
机构
[1] Max Planck Inst Met Forsch, D-70174 Stuttgart, Germany
关键词
D O I
10.1063/1.125848
中图分类号
O59 [应用物理学];
学科分类号
摘要
A method using an arc discharge in a nitrogen atmosphere for synthesizing large quantities of gallium nitride (GaN)-Carbon composite nanotubes and GaN nanorods is reported. The reaction is achieved by a dc arc discharge between a graphite anode filled with a mixture of GaN, graphite, and nickel powders and a graphite cathode in a nitrogen atmosphere. The GaN are presented as rodlike fillings in the composite tubes and the isolated GaN nanorods have diameters in the range of 7-45 nanometers and a length of up to 40 mu m. The outer graphitic shells of the composite carbon nanotubes have thicknesses ranging from 1 to 8 nm. It was found that the use of a nitrogen atmosphere plays a crucial role for the growth of the GaN nanorods fillings and the individual GaN nanorods. (C) 2000 American Institute of Physics. [S0003-6951(00)02905-3].
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收藏
页码:652 / 654
页数:3
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