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Article
). Size Dependency of the Elastic Modulus of ZnO Nanowires: Surface Stress Effect
Applied Physics Letters
  • Guofeng Wang
  • Xiaodong Li, University of South Carolina - Columbia
Publication Date
12-3-2007
Document Type
Article
Abstract

Relation between the elastic modulus and the diameter (D) of ZnOnanowires was elucidated using a model with the calculated ZnOsurface stresses as input. We predict for ZnOnanowires due to surface stress effect: (1) when D>20nm, the elastic modulus would be lower than the bulk modulus and decrease with the decreasing diameter, (2) when 20nm>D>2nm, the nanowires with a longer length and a wurtzite crystal structure could be mechanically unstable, and (3) when D<2nm, the elastic modulus would be higher than that of the bulk value and increase with a decrease in nanowire diameter.

Citation Information
Guofeng Wang and Xiaodong Li. "). Size Dependency of the Elastic Modulus of ZnO Nanowires: Surface Stress Effect" Applied Physics Letters Vol. 91 Iss. 23 (2007) p. #231912
Available at: http://works.bepress.com/xiaodong_li/54/