Polymer-assisted complexing controlled orientation growth of ZnO nanorods

Authors: He, Ying¹; Sang, Wenbin²; Wang, Jun’an²; Wu, Ruofeng²; Min, Jiahua²

Source: Journal of Nanoparticle Research, Volume 7, Number 2, June 2005 , pp. 307-311(5)

Publisher: Springer

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Abstract:

The growth of the oriented zinc oxide (ZnO) nanorods on silicon substrates based on a simple novel chemical transformation and thermal hydrolysis by using polyvinyl alcohol (PVA) as self-assembling complex polymer was introduced in this paper. All the polymers were removed after chemical oxidation and only the carbonized grid backbones remained that confines the ZnO nanorod’s diameter and enhance the absorption and diffusion of ZnO at the tips of the nanorods during growth. The ZnO nanorods are investigated by FTIR, XRD and FE-SEM. The results indicated that these nanorods have fine hexagonal wurtzite crystal structure and their diameter varies from 20 to 90 nm and the length up to about 1

m. A polymer-localized ZnO growth model is proposed, which well explains the growth behavior of ZnO nanorods.

Keywords: ZnO nanorod; polymer complexzation; self-assembling; orientation growth, composite material

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s11051-005-1169-1

Affiliations: 1: School of Materials Science and Engineering, Shanghai University, 149 Yanchang Road, Shanghai, 200072, P.R. China, Email: yhe@mail.shu.edu.cn 2: School of Materials Science and Engineering, Shanghai University, 149 Yanchang Road, Shanghai, 200072, P.R. China,

Publication date: 2005-06-01