Photo-initiated growth of zinc oxide (ZnO) nanorods

被引：10

作者：

Lee, E. T. Y. ^{[1
]}

Shimotsuma, Y. ^{[1
]}

Sakakura, M. ^{[1
]}

Nishi, M. ^{[2
]}

Miura, K. ^{[2
]}

Hirao, K. ^{[2
]}

机构：

[1] Kyoto Univ, Int Innovat Ctr, Nishikyo Ku, Kyoto 6158520, Japan

[2] Kyoto Univ, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 24期

关键词：

zinc oxide; nanorods; laser processing; ultrashort pulse; crystal growth;

D O I：

10.1016/j.matlet.2008.05.066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A photo-initiated process via femtosecond pulse-induced heterogeneous nucleation in zinc ammine complex (Zn(NH3)(4)(2+))-based aqueous solution without catalyst and surfactant, followed by hydrothermal treatments for crystal growth into zinc oxide (ZnO) nanorods. was investigated. Flat-top hexagonal ZnO nanorods with smooth planes of diameter >= 100 nm and length >= 1 mu m were grown with laser irradiation, compared to porous rod-like structures without.irradiation. The flat-top planes indicate slow growth rate, due to the intermediate step of Zn(NH3)(4)(2+) decomposition to Zn(OH)(4)(2-), before dehydration to ZnO. Prolonged hydrothermal treatment produced nanotubes. and lateral splits due to OH- erosion of the crystal faces. XRD analysis showed a hexagonal crystal structure while photoluminescence study indicated a peak at about 380 nm. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：4044 / 4046

页数：3

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