, Volume 5, Issue 3, pp 581-586,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 30 Dec 2009

In Situ Confocal Raman Mapping Study of a Single Ti-Assisted ZnO Nanowire

Abstract

In this work, we succeeded in preparing in-plane zinc oxide nanowires using a Ti-grid assisted by the chemical vapor deposition method. Optical spatial mapping of the Confocal Raman spectra was used to investigate the phonon and geometric properties of a single ZnO nanowire. The local optical results reveal a red shift in the non-polar E 2 high frequency mode and width broadening along the growth direction, reflecting quantum-confinement in the radial direction.