Centimetre-long single crystalline ZnO fibres prepared by vapour transportation

被引：2

作者：

Ji Zhen-Guo ^{[1
,2
]}

Hao Fang ^{[1
]}

Wang Chao ^{[2
]}

Xi Jun-Hua ^{[2
]}

机构：

[1] Hangzhou Dianzi Univ, Inst Elect informat, Hangzhou 310018, Peoples R China

[2] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 09期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1088/0256-307X/25/9/100

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Centimetre-long ZnO fibres are synthesized by vapour transportation via thermal evaporation of ZnO powders. The growth process is carried out in a graphite crucible, in which ZnO powder is loaded as the source material, and a silicon wafer is positioned on the top of the crucible as the growth substrate. During the growth process, the source temperature is kept at 800 degrees C, and the substrate temperature is kept at 600 degrees C. Typical growth time to obtain centimetre-long ZnO fibres is 5-10 hours. Scanning electron microscopy (SEM), x-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) measurement results show that ZnO fibres are single crystalline with high crystalline quality and very low defects concentration.

引用

页码：3467 / 3469

页数：3