A5044388821- Gold and Silver Nanoparticles Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Additive Manufacturing and 3D Printing Technologies
- Orbital Angular Momentum in Optics
- Modular Robots and Swarm Intelligence
- Molecular Communication and Nanonetworks
- Green IT and Sustainability
- Quantum Dots Synthesis And Properties
- Optical Coatings and Gratings
- Neuroscience and Neural Engineering
- Advanced Fluorescence Microscopy Techniques
- Recycling and Waste Management Techniques
- Advanced biosensing and bioanalysis techniques
Leibniz-Institute for New Materials
2023-2024
Leibniz Institute of Polymer Research
2017-2020
Technische Universität Dresden
2018
We demonstrate a novel colloidal self-assembly approach toward obtaining mechanically tunable, cost-efficient, and low-loss plasmonic nanostructures that show pronounced optical anisotropy upon mechanical deformation. Soft lithography template-assisted are used to fabricate stretchable periodic square lattice of gold nanoparticles on macroscopic areas. stress the impact particle size distribution resulting properties. To this end, lattices narrowly distributed particles (∼2% standard...
Abstract Noble metal nanoparticles can absorb incident light very efficiently due to their ability support localized surface plasmon resonances (LSPRs), collective oscillations of the free electron cloud. LSPRs lead strong, nanoscale confinement electromagnetic energy which facilitates applications in many fields including sensing, photonics, or catalysis. In these applications, damping LSPR caused by inter‐ and intraband transitions is a limiting factor associated losses line broadening....
We investigate the plasmonic coupling of metallic nanoparticles with continuous metal films by studying effect particle-to-film distance, cavity geometry, and particle size. To efficiently screen these parameters, we fabricated a particle-to-film-coupled functional nanostructure for which size distance vary. use gold-core/poly(N-isopropylacrylamide)-shell to self-assemble monolayer well-separated particles, introduce gradient in nanoparticle an overgrowth process, finally add film...
We investigated the temperature-dependent optical response of ordered lattices noninteracting gold-core/poly(N-isopropylacrylamide)-shell nanoparticles (NPs), a system with proven photothermal and sensing capabilities. For first time on this system, we exploited in situ spectroscopic ellipsometry (SE) to determine complex, properties lattice—a key piece information which, however, is often overlooked. In doing so, took full advantage large-scale colloidal self-assembly, which makes NP...
Abstract Anti‐reflective surfaces are of great interest for optical devices, sensing, photovoltaics, and photocatalysis. However, most the anti‐reflective lack in situ tunability extinction with respect to wavelength. This communication demonstrates a tunable surface based on colloidal particles comprising metal core an electrochromic polymer shell. Random deposition these reflective results decrease reflectance up 99.8% at localized plasmon resonance frequency. narrow band feature can be...
Polymer separation layers facilitate the disassembly and recycling of composites made from printed electronics.
Abstract We present a fluorescent emitter (rhodamine B) coupled to dielectric or metallic interface as well cavity study their radiative decay processes. Supported by finite-difference time-domain (FDTD) simulations, we correlate the non-radiative and rates with absorption scattering cross section efficiencies, respectively. On single particle level, use atomic force microscopy (AFM), scanning electron (SEM), spectroscopy, fluorescence life time imaging (FLIM) time-correlated photon counting...