ZnO-Nanosäulen: Herstellung, Eigenschaften und Bauelemente

ZnO pillars grown on a heated Au film. The catalyst alloy consisting of Au and Zn can be clearly seen as droplet-like structure on top of each pillar (group of Profs. Sauer and Thonke, Ulm).

TEM micrograph (group of Prof. Gerthsen, Karlsruhe) of a ZnO nanopillar produced by the VLS method. Higher-magnification images show resolved lattice planes revealing perfect crystallinity of the pillar.

Model calculation of the intensity distribution of the electric field inside a ZnO nanorod (group of Prof. Kalt, Karlsruhe). Right part of a): The higher step in index of refraction at the interface gold/GaN leads to an improved confinement of light inside the nanorod and to less leakage into the substrate. b): Cross section perpendicular to the growth direction. c): TEM picture of the actual interface nanorod/substrate. The gold particles appear as dark droplets. This figure appeared as cover picture on phys. stat. solidi (b) 243 No. 4 (2006).