Beauty in Science and Nature

Datum

17.06.2025

Zeit

16:30 - 17:30

Sprecher

Prof. Andreas Fery

Zugehörigkeit

Institut für Polymerforschung Dresden und Technische Universität Dresden

Sprache

en

Hauptthema

Materialien

Host

Ines Firlle

Beschreibung

I will discuss how finding beauty of a driving force impacts (my) research in Plasmonics and cross-fertilizes with Photography. Starting from Metallic nanoparticles that offer a number of interesting optical and electronic effects such as their localized surface plasmon resonance (LSPR). I will discuss how plasmonic nanoparticles provide excellent opportunities for controlling electromagnetic near-fields at optical frequencies, which has led to a wide range of applications in various fields such as surface-enhanced spectroscopy, light harvesting, or photonics. Novel perspectives arise from combining plasmonic nanoparticles with a functional polymeric shell which does not only allow controlling inter-particle distances but as well tailor transport / electronic coupling. [1,2,3] Increasing the level of complexity, the ordering of particles at different length scales opens another powerful routes to optical and electronic functionality due to novel collective plasmonic excitations arising from plasmonic coupling effects. We focus on achieving such ordered particle arrays through self-assembly approaches. Colloidal self-assembly can indeed yield well-defined colloidal clusters and surface arrays [4] in which coupling effects can be controlled. In particular, large-scale assemblies are possible in combination with biomimetic surface patterning like controlled wrinkling. We discuss the underlying physicochemical principles of the structure formation process and the resulting plasmonic coupling effects including chiroplasmonic metamaterial effects [5, 6]. Finally, we present perspectives on how these assembly principles can be relevant for developing circular economy approaches for advanced materials.

Links

• Seminars at the IFW

Letztmalig verändert: 10.06.2025, 07:39:46