Role of the Vapor Composition in the Evolution from 1D to 2D ZnO Nanostructures

被引：7

作者：

Ra, Hyun-Wook ^{[1
]}

Choi, Kwang-Sung ^{[1
]}

Hahn, Yoon-Bong ^{[1
]}

Im, Yeon-Ho ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Sch Semicond & Chem Engn, Jeonju 561756, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 46期

关键词：

D O I：

10.1021/jp8065597

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of source vapor composition on the growth of ZnO nanostructures inside a microchannel was investigated using a thermal evaporation system. 1D to 2D nanostructures were symmetrically evolved along the longitudinal axis (gas flow direction) of the microchannel. On the basis of the experimental conditions, the changes in the vapor composition along the channel length could be predicted by a simple chemical vapor diffusion modeling. It was revealed that the Zn vapor composition under a high oxygen pressure is one of the critical parameters responsible for evolution from 1D to 2D nanostructures.

引用

页码：17926 / 17930

页数：5

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