Crystallographic Mapping of Guided Nanowires by Second Harmonic Generation Polarimetry.

ABSTRACT: The growth of horizontal nanowires (NWs) guided by epitaxial and graphoepitaxial relations with the substrate is becoming increasingly attractive owing to the possibility of controlling their position, direction, and crystallographic orientation. In guided NWs, as opposed to the extensively characterized vertically grown NWs, there is an increasing need for understanding the relation between structure and properties, specifically the role of the epitaxial relation with the substrate. Furthermore, the uniformity of crystallographic orientation along guided NWs and over the substrate has yet to be checked. Here we perform highly sensitive second harmonic generation (SHG) polarimetry of polar and nonpolar guided ZnO NWs grown on R-plane and M-plane sapphire. We optically map large areas on th

SUBMITTER: Neeman L 

PROVIDER: S-EPMC5309862 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature