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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 22: Poster Session III - Charged Soft Matter and Theory and Simulation

CPP 22.20: Poster

Wednesday, March 24, 2021, 16:30–18:30, CPPp

In situ GISAXS Observation of Sputter-Deposited Gold Nanostructure on Mesoporous Titanium Dioxide Template — •Suzhe Liang¹, Wei Chen¹, Shanshan Yin¹, Simon J. Schaper¹, Thomas Strunskus², Matthias Schwartzkopf³, Stenphan V. Roth^3,4, and Peter Müller-Buschbaum^1,5 — ¹TU München, Garching, Germany — ²CAU,Kiel, Germany — ³DESY, Hamburg, Germany — ⁴KTH, Stockholm, Sweden — ⁵Heinz Maier-Leibniz Zentrum (MLZ), TU München, Garching, Germany

Gold/titanium dioxide (Au/TiO₂) nanohybrid materials have attracted significant attention due to the outstanding optical, photocatalytic and photovoltaic performance. Compared to chemical synthesis and lithography, sputter deposition is a facile and scalable method to produce metallic thin films and nanoparticles on substrates in precise controllability. Using nanostructured templates, ordered metal nanostructures were achieved through the sputter deposition approach. Herein, we propose a strategy to fabricate nanostructured Au/TiO₂ hybrid thin films by sputter-depositing Au on mesoporous TiO₂ template. The mesoporous TiO₂ template is prepared by a typical sol-gel synthesis approach with the assistance of diblock copolymer (PS-b-PEO). In order to investigate the kinetics of the sputter-deposited Au growth on the TiO₂ template, in situ grazing-incidence small-angle X-ray scattering (GISAXS) during sputter deposition is measured.