Regensburg 2022 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Interfaces and Thin Films and Responsive and Adaptive Systems

CPP 37.3: Vortrag

Donnerstag, 8. September 2022, 11:30–11:45, H39

Tailoring the Optical Properties of Sputter-Deposited Gold Nanostructures on Nanostructured TiO2 Templates based on in situ GISAXS Determined Growth Laws — •Suzhe Liang¹, Wei Chen¹, Shanshan Yin¹, Simon J. Schaper¹, Jonas Drewes², Niko Carstens², Thomas Strunskus², Franz Faupel², Marc Gensch^1,3, Matthias Schwartzkopf³, Stenphan V. Roth^3,4, Ya-Jun Cheng⁵, and Peter Müller-Buschbaum^1,6 — ¹TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — ²LS Materialverbunde, Institut für Materialwissenschaft, CAU, 24143 Kiel — ³DESY, 22607 Hamburg — ⁴Department of Fibre and Polymer Technology, KTH, SE-100 44 Stockholm, Sweden — ⁵NIMTE, CAS, 315201 Ningbo, China — ⁶MLZ, TU München, 85748 Garching

Au/TiO2 nanohybrid materials have attracted significant attention due to the outstanding optical, photocatalytic and photovoltaic performance. We use customized polymer templating to achieve TiO2 nanostructures with different morphologies. Au/TiO2 hybrid thin films are fabricated by sputter deposition, meanwhile in situ GISAXS during the deposition process is applied to in-depth understand the Au morphology on the TiO2 templates. The resulting Au nanostructure is largely influenced by the TiO2 template morphology. Based on the detailed understanding of the Au growth process, characteristic distances can be selected to achieve tailored Au nanostructures at different Au loadings. For selected sputter-deposited Au/TiO2 hybrid thin films, the optical response with a tailored localized surface plasmon resonance is demonstrated.