Results 171 to 180 of about 476,899 (295)

TADF Emission in Supramolecular Assemblies through Cooperativity and Polymorphism

open access: yesAdvanced Optical Materials, EarlyView.
Macroscopic self‐assembled fibers emitting orange color with thermally activated delayed fluorescence (TADF) character are obtained by using encumbered phenyl D‐A linkers in a D‐A‐D configuration. The new dye self‐assembles through a cooperative mechanism into fibers that emit light upon electrical stimulus in solution‐processed organic light‐emitting ...
Marvin Nyenhuis   +8 more
wiley   +1 more source

Strong and Weak Coupling Nanophysics with Free Electron Beams

open access: yesAdvanced Optical Materials, EarlyView.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak   +6 more
wiley   +1 more source

Strongly Coupled Exciton–Hyperbolic‐Phonon‐Polariton Hybridized States in hBN‐Encapsulated Biased Bilayer Graphene

open access: yesAdvanced Optical Materials, EarlyView.
Excitons in biased bilayer graphene are electrically tunable excitations in the mid‐infrared (MIR) spectrum, where optical transitions are typically scarce. In this work, it is demonstrated that when the bilayer is encapsulated in hexagonal‐boron‐nitride (hBN)—a material supporting optical phonons and hyperbolic‐phonon‐polaritons (HPhPs) in the MIR—the
Tomer Eini   +3 more
wiley   +1 more source

Tuning Solid‐State Fluorescence in BODIPY Dyes through Substitution‐Controlled Packing Motifs

open access: yesAdvanced Optical Materials, EarlyView.
A systematic structure–property study reveals how substitution patterns in BODIPY dyes control supramolecular packing and solid‐state emission. The interplay of substituent type, packing motif, and π–π overlap governs emission color and efficiency. Abstract Understanding how molecular packing governs solid‐state fluorescence is key to unlocking new ...
Tim Patten   +4 more
wiley   +1 more source

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