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O: Fachverband Oberflächenphysik
O 24: Plasmonics and Nanooptics: Fabrication, Characterization and Applications
O 24.6: Poster
Montag, 7. März 2016, 18:15–20:30, Poster E
Controlled growth of high aspect-ratio single-crystalline gold-platelets — •Enno Krauss1, René Kullock1, Guilherme Stein1, Peter Geisler1, and Bert Hecht1,2 — 1NanoOptics & Biophotonics Group, Experimentelle Physik 5, Physikalisches Institut, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany — 2Röntgen Research Center for Complex Material Systems (RCCM), Am Hubland, 97074 Würzburg, Germany
Advances in nano-fabrication increase the need for high-quality single-crystalline gold-substrates that combine large areas to enable lithographic methods with low and tunable thickness. We present a simple recipe to chemically grow high quality single-crystalline gold-platelets with thicknesses of less than 20 nm combined with edge lengths up to 0.2 mm . The reactants are tuned and their impact on the growth-velocities of height and lateral size is statistically investigated. By varying the chemical environment during growth, the thickness can be tuned independently of the lateral size.