Young's modulus of ZnO microwires determined by various mechanical measurement methods

초록

The mechanical properties of ZnO microwires have been studied using three different methods: quasistatic flexural measurements using atomic force microscopy, static measurements using a nano indenter, and dynamic flexural measurements using optical interferometry. ZnO microwires were synthesized by chemical vapor deposition method, and the crystal structure and quality were examined using x-ray diffraction and photoluminescence spectroscopy. The Young's moduli were estimated using the measurement results from the three methods, and they showed consistent values in the range 67.5-79.4 GPa for microwires with diameters of 1.8 mu m +/- 100 nm. (C)2013 Elsevier B.V. All rights reserved.

키워드