ZnO nanowires and nanobelts: shape selection and thermodynamic modeling

Fan, H. J. and Barnard, A. S. and Zacharias, M. (2007) ZnO nanowires and nanobelts: shape selection and thermodynamic modeling. Applied Physics Letters, 90. p. 143116. DOI 10.1063/1.2720715

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Abstract

The authors show that, during a steady-state vapor phase growth of ZnO nanomaterials, indium doping causes the structural change from usual [0001]-axial short nanowires to [11[overline 2]0]-axial nanobelts of much larger aspect ratio. They used an analytical thermodynamic model based on geometric summation of the Gibbs free energy to predict the dimension dependence of the nanowires and nanobelts for both pure and In-doped ZnO. The calculation result agrees with the experiment observation that in situ indium doping influences the nucleation and supports the dominating growth of a-axial nanobelts over c-axial nanowires

Item Type: Article
Uncontrolled Keywords: 2007 AREP IA54 2007 P
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 90
Page Range: p. 143116
Identification Number: 10.1063/1.2720715
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:02
Last Modified: 23 Jul 2013 10:06
URI: http://eprints.esc.cam.ac.uk/id/eprint/279

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