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Journal of Nanomaterials
Volume 2011 (2011), Article ID 473629, 12 pages
http://dx.doi.org/10.1155/2011/473629
Research Article

Mechanism and Growth of Flexible ZnO Nanostructure Arrays in a Facile Controlled Way

School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009, China

Received 8 April 2010; Accepted 26 May 2010

Academic Editor: Quanqin Dai

Copyright © 2011 Yangping Sheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nanostructure arrays-based flexible devices have revolutionary impacts on the application of traditional semiconductor devices. Here, a one-step method to synthesize flexible ZnO nanostructure arrays on Zn-plated flexible substrate in Zn/ solution system at 70–90 was developed. We found out that the decomposition of Zn precipitations, formed in lower concentration, in the bulk solution facilitates the formation of flower-like structure. In higher temperature, 90, ZnO nanoplate arrays were synthesized by the hydrolysis of zinc hydroxide. Highly dense ZnO nanoparticale layer formed by the reaction of with Zn plating layer in the initial self-seed process could improve the vertical alignment of the nanowires arrays. The diameter of ZnO nanowire arrays, from 200 nm to 60 nm, could be effectively controlled by changing the stability of Zn complex ions by varying the ratio of Zn to which further influence the release rate of ions. This is also conformed by different amounts of the Zn vacancy as determined by different UV emissions of the PL spectra in the range of 380–403 nm.