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Title: Physical model construction for electrical anisotropy of single crystal zinc oxide micro/nanobelt using finite element method

Based on conductivity characterization of single crystal zinc oxide (ZnO) micro/nanobelt (MB/NB), we further investigate the physical mechanism of nonlinear intrinsic resistance-length characteristic using finite element method. By taking the same parameters used in experiment, a model of nonlinear anisotropic resistance change with single crystal MB/NB has been deduced, which matched the experiment characterization well. The nonlinear resistance-length comes from the different electron moving speed in various crystal planes. As the direct outcome, crystallography of the anisotropic semiconducting MB/NB has been identified, which could serve as a simple but effective method to identify crystal growth direction of single crystal semiconducting or conductive nanomaterial.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5]
  1. The Higher Educational Key Laboratory for Measuring and Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080 (China)
  2. Department of Metallurgical and Materials Engineering, Center for Materials for Information Technology (MINT), University of Alabama, Tuscaloosa, Alabama 35487 (United States)
  3. (China)
  4. (MINT), University of Alabama, Tuscaloosa, Alabama 35487 (United States)
  5. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714 (China)
Publication Date:
OSTI Identifier:
22262613
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; CRYSTAL GROWTH; CRYSTALLOGRAPHY; ELECTRONS; FINITE ELEMENT METHOD; MONOCRYSTALS; NANOSTRUCTURES; NONLINEAR PROBLEMS; ZINC OXIDES