Template-directed selective growth of ordered ZnO nanostructures on GaN by the hydrothermal method

被引：18

作者：

Zhou, H. L. ^{[1
]}

Chen, A. ^{[2
]}

Jian, L. K. ^{[2
]}

Ooi, K. F. ^{[3
]}

Goh, G. K. L. ^{[3
]}

Zang, K. Y. ^{[3
]}

Chua, S. J. ^{[3
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] Natl Univ Singapore, Singapore Synchrotron Light Source, Singapore 117603, Singapore

[3] Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

JOURNAL OF CRYSTAL GROWTH | 2008年 / 310卷 / 15期

关键词：

selective growth; hydrothermal method; electron beam lithography; ZnO;

D O I：

10.1016/j.jcrysgro.2008.04.047

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Ordered ZnO nanostructures are synthesized through nanolithographically patterned templates on GaN by using the hydrothermal method. Due to the confined nucleation sites, ZnO nanostructures are selectively grown and replicate the geometry and dimension of the nanopatterns. The as-grown ZnO nanostructures have doughnut-like profiles, indicating preferred nucleation at the nanopattern edges driven by the surface energy minimization. Variation of ZnO nanostructure morphologies with varying nanopattern sizes is observed, and the growth mechanism is discussed. Room-temperature photolummescence spectra show strong near band-edge emission at 381 nm. This method can be used to fabricate ordered ZnO nanostructures with tunable shape, size and morphology. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3626 / 3629

页数：4

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