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HL: Halbleiterphysik

HL 50: Nanodr
ähte

HL 50.2: Vortrag

Dienstag, 8. März 2005, 11:00–11:15, TU P-N201

ZnO Nanorods Fabricated by Solution Synthesis and Chemical Vapor Deposition on Patterned Substrates — •Thomas Büsgen, Michael Hilgendorff, Witold Kandulski, Adam Kosiorek, Peter Karageorgiev und Michael Giersig — caesar research center, Ludwig-Erhard-Allee 2, 53175 Bonn, Germany

We will present the current results of preparations and characterizations of ZnO nanorods and -wires. Small ZnO nanorods of 10 nm in diameter and aspect ratios up to 10 have been synthesized in alcoholic solutions by a sol-gel approach using appropiate surfactants.

Larger ZnO wires of several microns in length and 100 nm in diameter were fabricated by chemical vapor deposition. The wire growth has been catalyzed by highly ordered Au islands, pre-patterned on sapphire substrates by nanoshadow lithography.

The as prepared ZnO materials have been characterized by SEM, TEM, NSOM, and optical spectroscopy. Their properties will be discussed in view of future applications.