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Articles you may be interested inSelective growth and piezoelectric properties of highly ordered arrays of vertical ZnO nanowires on ultrathin alumina membranes Appl. Phys. Lett. 97, 053106 (2010); 10.1063/1.3474615 Buckling and elastic stability of vertical ZnO nanotubes and nanorodsBending flexibility, kinking, and buckling characterization of ZnO nanorods/nanowires grown on different substrates by high and low temperature methods Nanomechanical characterization of vertical well-aligned single-crystal ZnO nanowires on ZnO:Ga/ glass templates was performed by nanoindentation technique. The buckling loads were found to be 1465 and 215 N for the ZnO nanowires of 100 and 30 nm diameters, respectively. Furthermore, the buckling energies for the ZnO nanowires of 100 and 30 nm diameters were 3.62ϫ 10 −10 and 3.69ϫ 10 −11 J, respectively. Based on the Euler buckling model, Young's modulus of the individual ZnO nanowire has been derived from two possible modes in this work.

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The mechanical properties of vertical single-crystal ZnO nanowires on ZnO:Ga/glass templates were characterized by nanoindentation experiments in this work. The results from x-ray diffraction and Raman spectra show good crystal quality for the ZnO nanowires. The buckling loads were found to be 1465 and 215 μN for ZnO nanowires of 100 and 30 nm diameters, respectively. When the fixed-fixed column mode was used, it was found that the Young's modulus values of the ZnO nanowires of 100 and 30 nm diameters were 117 and 232 GPa, while the critical buckling strains were 0.62% and 0.35%, respectively. On the other hand, when we employed the fixed-pinned column mode, it can be seen that the Young's modulus values were 229 and 454 GPa, while the critical buckling strains were 0.32% and 0.18%, respectively. Buckling behaviour of the ZnO nanowires was significantly predicted by the Euler buckling model in this work.