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SKM 2023 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 29: Interfaces and Thin Films

CPP 29.2: Vortrag

Mittwoch, 29. März 2023, 10:00–10:15, MER 02

Template-Induced Growth of Sputter-Deposited Gold Nanoparticles on Ordered Porous TiO2 Thin Films for SERS Sensors — •Suzhe Liang1, Tianfu Guan1, Shanshan Yin1, Eva Krois2, Wei Chen1, Christopher R. Everett1, Jonas Drewes3, Thomas Strunskus3, Marc Gensch1,4, Jan Rubeck4, Christoph Haisch2, Matthias Schwartzkopf4, Franz Faupel3, Stephan V. Roth4,5, Ya-Jun Cheng6, and Peter Müller-Buschbaum1,71TUM School of Natural Sciences, Chair for Functional Materials, Garching — 2TUM School of Natural Sciences, Chair of Analytical Chemistry and Water Chemistry, Garching — 3LS Materialverbunde, Institut für Materialwissenschaft, CAU, Kiel — 4DESY, Hamburg — 5Department of Fibre and Polymer Technology, KTH, Stockholm, Sweden — 6Ningbo Institute of Materials Technology & Engineering, CAS, Ningbo, China — 7MLZ, TUM, Garching

Ordered porous gold/titanium dioxide (Au/TiO2) hybrid nanostructured films are specifically interesting in large-scale applications using localized surface plasmon resonances (LSPRs) and surface-enhanced Raman scattering (SERS). We investigate the optical response of sputter-deposited Au/TiO2 nanohybrid thin films with a focus on the plasmonic response and application as molecular sensors. To elucidate the origin of this behavior, we apply in situ grazing-incidence small-angle X-ray scattering (GISAXS) to investigate the growth kinetics of Au on a TiO2 template during sputter deposition. The Raman intensity of deposited molecules, probed with rhodamine 6G (R6G), depends on the deposited gold thickness.

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