Dresden 2014 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

O: Fachverband Oberflächenphysik

O 37: Posters: Plasmonics, Electronic Structure and Spin-Orbit Interaction, Semiconductor and Insulator Surfaces, Nanostructures

O 37.10: Poster

Dienstag, 1. April 2014, 18:30–22:00, P2

Self-assembly of gold nanoparticle structures — •Emre Gürdal, Simon Dickreuter, Dieter Kern, and Monika Fleischer — Institute for Applied Physics, Eberhard Karls University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany

In the last decade plasmonic nanoparticle assemblies took an important role in emerging nanotechnologies. Gold particles show resonances in the visible and infrared spectral range and exhibit a very strong near field in their close vicinity. This can be used e.g. for biosensing or optical antennas. Ordered arrays of such particles can be fabricated by using substrates with hole templates. There are several possibilities to fabricate such templates. E-beam lithography on the one hand which provides good control but is time consuming and costly, and the self-assembly of block-copolymers on the other, which is a larger area parallel process. We investigate the accumulation of gold nanospheres into the voids of either e-beam resist or diblock-copolymer layers. For the formation of cylindrical structures on top of a silicon substrate by diblock-copolymers selecting the optimum layer thickness is important. Furthermore it is a challenge to achieve a gold nanosphere monolayer in such cylindrical holes. An overview over different methods for fabricating gold nanosphere oligomers will be presented.