Catalyst-free growth of single-crystalline alumina nanowire arrays

被引：50

作者：

Zhao, Q

Xu, X

Zhang, H

Chen, Y

Xu, J

Yu, D ^{[1
]}

机构：

[1] Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[2] Peking Univ, Electron Microscopy Lab, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2004年 / 79卷 / 07期

关键词：

Microstructure; Transmission Electron Microscopy; Large Particle; Silicon Substrate; Thermal Evaporation;

D O I：

10.1007/s00339-004-2911-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alumina nanowires were synthesized on a large-area silicon substrate via simple thermal evaporation of a mixture of aluminum and alumina powders. The microstructure of the as-grown alumina nanowires was characterized using X-ray diffraction and transmission electron microscopy techniques. These nanowires usually have a straight morphology and are single crystalline with the wire axis parallel to the (001) direction. Arrays of the alumina nanowires were also observed grown on the surface of many large particles. The catalyst-free growth of the alumina nanowires was explained in the framework of vapor-solid growth.

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页码：1721 / 1724

页数：4

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