Title: The growth and structure properties of polycrystalline ZnO nanobelts
Authors: Xuan Fang; Xiaohua Wang
International Joint Research Center for Nanophotonics and Biophotonics, School of Science, Changchun University of Science and Technology, Changchun 130022, China.
International Joint Research Center for Nanophotonics and Biophotonics, School of Science, Changchun University of Science and Technology, Changchun 130022, China
Abstract: In this paper, polycrystalline ZnO nanobelts were synthesized by a hydrothermal method with the assistance of urea. By fabricating the sample under different growth parameters it could be confirmed the urea played an important role in the growth of ZnO nanobelts. In the early stage of growth Zn5 (CO3)2 (OH) 6 nanoflakes could be fabricated. Then with the increasing of the OH-concentration, Zn5 (CO3)2 (OH) 6 decomposed gradually, and the ZnO nanobelts could be obtained under a self-assembly process. The nanobelts showed a high thermal stability under 400°C. With increasing the annealing temperature to 500°C the as-grown nanobelts could be broken.
Keywords: polycrystalline ZnO nanobelts; zinc oxide; hydrothermal crystal growth; urea; thermal stability; annealing temperature.
Int. J. of Nanomanufacturing, 2012 Vol.8, No.3, pp.253 - 261
Submission date: 23 Oct 2011
Date of acceptance: 12 Jan 2012
Available online: 24 May 2012