title: Aspect ratio dependence of the elastic properties of ZnO nanobelts.
abstract: The Young's modulus of ZnO nanobelts was measured with an atomic force microscope by means of the modulated nanoindentation method. The elastic modulus was found to depend strongly on the width-to-thickness ratio of the nanobelt, decreasing from about 100 to 10 GPa, as the width-to-thickness ratio increases from 1.2 to 10.3. This surprising behavior is explained by a growth-direction-dependent aspect ratio and the presence of stacking faults in nanobelts growing along particular directions.
authors: School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA. marcel.lucas@gatech.edu
authors: Marcel
authors: M
authors: Lucas
authors: Wenjie
authors: W
authors: Mai
authors: Rusen
authors: R
authors: Yang
authors: Zhong Lin
authors: ZL
authors: Wang
authors: Elisa
authors: E
authors: Riedo