A5039302336- Pickering emulsions and particle stabilization
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Liquid Crystal Research Advancements
- Gold and Silver Nanoparticles Synthesis and Applications
- Polymer Surface Interaction Studies
- Surfactants and Colloidal Systems
- Organic Light-Emitting Diodes Research
- Material Dynamics and Properties
Leibniz Institute of Polymer Research
2022-2024
Chemnitz University of Technology
2019-2021
Structural defects in semiconducting conjugated polymers are usually suspected to deteriorate their properties and device performance therefore complicate batch-to-batch reproducibility. This study investigates homocoupling (hc) copolymers made from dithiazolyldiketopyrrolopyrrole (TzDPPTz) tetrafluorobenzene (F4) by direct arylation polycondensation (DAP). Hc quantified 1H NMR spectroscopy with good accuracy, the effect of several reaction parameters on TzDPPTz hc content resulting...
The solvophobicity-driven directional self-assembly of polymer-coated gold nanorods is a well-established phenomenon. Yet, the kinetics this process, origin site-selectivity in self-assembly, and interplay (attractive) solvophobic brush interactions (repulsive) electrostatic forces are not fully understood. Herein, we use combination time-resolved (vis/NIR) extinction spectroscopy finite-difference time-domain (FDTD) simulations to determine conversion profiles for assembly with polystyrene...
Devices and applications that exploit nanoparticle (NP) coupling interactions require the controlled arrangement of primary NPs into defined supracolloidal assemblies. Solution self-assembly polymer-coated is a scalable approach; however, imparting assembly directionality still challenging. Current strategies for achieving such include surface encoding distinct NP sites with polymer ligands, which adds significantly to complexity approach. Moreover, at present, mechanistic understanding...
Lyotropic liquid crystalline (LC) phases offer a means of controlling molecular order and orientation in thin films conjugated polymers. Surface energy, surface-induced ordering, film thickness are additional factors determining the films. Through solvent vapor annealing situ atomic force microscopy swollen state, we show that ultrathin poly(dithiazolyldiketopyrrolopyrrole-tetrafluorobenzene) (PTzDPPTzF4) alternating copolymer stacks monomolecular-thick layers with 2.1 nm step height form,...