Open Access Nano Express

Surfactant-Assisted in situ Chemical Etching for the General Synthesis of ZnO Nanotubes Array

Hongqiang Wang*, Ming Li, Lichao Jia, Liang Li, Guozhong Wang, Yunxia Zhang and Guanghai Li*

Author Affiliations

Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, 230031, Hefei, People’s Republic of China

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Nanoscale Research Letters 2010, 5:1102-1106  doi:10.1007/s11671-010-9608-z

Published: 24 April 2010

Abstract

In this paper, a general low-cost and substrate-independent chemical etching strategy is demonstrated for the synthesis of ZnO nanotubes array. During the chemical etching, the nanotubes array inherits many features from the preformed nanorods array, such as the diameter, size distribution, and alignment. The preferential etching along c axis and the surfactant protection to the lateral surfaces are considered responsible for the formation of ZnO nanotubes. This surfactant-assisted chemical etching strategy is highly expected to advance the research in the ZnO nanotube-based technology.

Keywords:
ZnO; Nanotubes array; Chemical etching; Surfactant; Substrate independent