Growth mechanism of tubular ZnO formed in aqueous solution

被引：187

作者：

Wei, A

Sun, XW

Xu, CX

Dong, ZL

Yang, Y

Tan, ST

Huang, W

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Fudan Univ, Inst Adv Mat, Shanghai 200433, Peoples R China

[3] SE Univ, Dept Elect Engn, Adv Photon Ctr, Nanjing 210096, Peoples R China

[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 06期

关键词：

D O I：

10.1088/0957-4484/17/6/033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Tubular ZnO microstructural arrays were fabricated by a hydrothermal decomposition method. The dependence of the morphologies on the growth time and temperature was investigated in detail. An experiment was carried out to determine the mechanism of tubular ZnO formation. Our results showed that ZnO microtubes originated from an ageing process from ZnO microrods at a lower temperature (compared to the temperature when hydrothermal deposition of ZnO microrods was dominant) due to the preferential chemical dissolution of the metastable Zn-rich (0001) polar surfaces. A growth model was proposed based on the coexistence of hydrothermal deposition and dissolution of ZnO in the fabrication process.

引用

页码：1740 / 1744

页数：5

共 21 条

[1] Growth of hollow annular zinc oxide structures [J].