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The growth mechanism of ZnO single-crystal nanorods synthesized by polymer complexing with zinc salts

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Abstract

The growth mechanism of single-crystal ZnO nanorods synthesized by the method of polymer complexing with zinc salts is investigated. The annealing temperature is controlled at about the decomposition temperature of dihydrate zinc acetate (Zn(O2CCH3)2·2H2O) of 573 K. By changing the annealing time, the ZnO nanostructures can be modified from nanoparticles to nanorods. As a result, the formation of single-crystal ZnO nanorods can be observed. Through investigating the Fourier transform infrared spectra of (a) polyvinyl pyrrolidone (PVP), (b) Zn(O2CCH3)2·2H2O and (c) the mixture of PVP and Zn(O2CCH3)2(H2O)2, the interaction between PVP and Zn(O2CCH3)2·2H2O can be observed. PVP plays an important role in the growth of the single-crystal ZnO nanorods. We analyze the growth process of ZnO nanorods by observing their TEM images at different moments. Consequently, our results indicate that the single-crystal ZnO nanorods were formed by self-assembling the ZnO nanoparticles.

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Authors and Affiliations

  1. Laboratory of Nanomaterials Chemistry, Key Laboratory of Science and Technology of Controllable Chemical Reactions, Beijing University of Chemical Technology, Beijing, 100029, P.R. China

    Dongliang Tao

  2. Department of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China

    Wallace C.H. Choy

Authors
  1. Dongliang Tao
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  2. Wallace C.H. Choy
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Correspondence to Wallace C.H. Choy.

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PACS

61.46.Hk; 61.46.Df; 78.30.-j; 81.07.-b; 81.16.Be

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Tao, D., Choy, W. The growth mechanism of ZnO single-crystal nanorods synthesized by polymer complexing with zinc salts. Appl. Phys. A 91, 157–160 (2008). https://doi.org/10.1007/s00339-007-4389-7

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  • DOI: https://doi.org/10.1007/s00339-007-4389-7

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