Growth of AlQ3 nanowires directly from amorphous thin film and nanoparticles

被引：36

作者：

Cho, Chun-Pei ^{[1
]}

Yu, Chung-Yi ^{[1
]}

Perng, Tsong-Pyng ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 21期

关键词：

D O I：

10.1088/0957-4484/17/21/035

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Amorphous AlQ(3) thin film and nanoparticles can directly grow into crystalline nanowires by a one-step heat treatment. With appropriate Ar pressure and heating time at 190 degrees C, growth of alpha-phase nanowires from the film occurs. Similar growth from amorphous nanoparticles is also demonstrated by heat treatment at 150 degrees C. The growth is dictated by the anisotropic crystallographic nature of alpha-AlQ(3). The growth mechanism can be illustrated in terms of nucleation and molecular migration within the film or nanoparticles. Complete structural transformation to nanowires leads to a spectral blue shift and an enhanced intensity of photoluminescence.

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页码：5506 / 5510

页数：5

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