Results 121 to 130 of about 24,892 (304)

Polaritonic Materials: A Comparative Study on the Relaxation Kinetics in Fabry–Perot versus Plasmonic Cavities

Advanced Optical Materials, EarlyView.
Comparing Fabry–Perot and plasmonic nanorod cavities reveals how the number of dark states dictates polariton relaxation. The high number of dark states results in a polaritonic bottleneck, while reducing the number of dark states enables to measure the polaritonic decay.
Nicola Peruffo, Jack M. Woolley, Rahul Bhuyan, Raj Pandya, James Lloyd‐Hughes, Karl Börjesson   +5 more
wiley   +1 more source

Deciphering Design of Aggregation‐Induced Emission Materials by Data Interpretation

Advanced Science
This work presents a novel methodology for elucidating the characteristics of aggregation‐induced emission (AIE) systems through the application of data science techniques.
Junyi Gong, Ziwei Deng, Huilin Xie, Zijie Qiu, Zheng Zhao, Ben Zhong Tang   +5 more
doaj   +1 more source

Tailoring Amine Substitution in Fluorene and Dibenzothiophene: A Molecular Strategy for Ultralong Organic Phosphorescence

Advanced Optical Materials, EarlyView.
Tailored amine substitution in fluorene and dibenzothiophene derivatives enables systematic control of excited‐state properties and triplet population. Combined photophysical studies, TD‐DFT calculations and time‐resolved EPR reveal how charge‐transfer character, sulfur‐induced spin–orbit coupling and triplet manifold engineering cooperate to promote ...
Francesco Ruighi, Gianluca Accorsi, Eduardo Fabiano, Lorenzo Franco, Alessandro Agostini, Samuel Zatta, Leonard E. Cleve, Federica Angilè, Francesco Paolo Fanizzi, Gustavo Fernández, Agostina L. Capodilupo   +10 more
wiley   +1 more source

Regioselective π‐Extension of Helical PAHs: Tuning Energy Gaps and Excited‐State Dynamics Directed by Clar's Sextet Migration

Advanced Optical Materials, EarlyView.
Central and terminal ring fusions of per‐peri‐perbenzo[7]helicene (PB[7]H) yield novel helical polycyclic aromatic hydrocarbons (HPAHs). The migration of Clar's aromatic sextets governs the inner‐rim stiffness. This topology‐directed strategy bridges the discrete optical gaps of homologous series. Transition moment density (TMD) analysis visualizes the
Zhibo Liu, Zheng Zhang, Hikaru Sotome, Takashi Hirose   +3 more
wiley   +1 more source

Characterization of Excited-State Electronic Structure in Diblock π-Conjugated Oligomers with Adjustable Linker Electronic Coupling

Molecules
Diblock conjugated oligomers are π-conjugated molecules that contain two segments having distinct frontier orbital energies and HOMO-LUMO gap offsets.
Habtom B. Gobeze, Muhammed Younus, Michael D. Turlington, Sohel Ahmed, Kirk S. Schanze   +4 more
doaj   +1 more source

Revealing Mechanofluorochromism and Intricate Long‐lived Decay Pathways in Keto‐Coumarin‐Based Molecular Crystals

Advanced Optical Materials, EarlyView.
Donor–acceptor organic emissive materials show great promise in cutting‐edge optical applications. Herein, the photophysical properties of two keto‐coumarin organic materials are studied in detail. Both show mechanofluorochromism, but a diphenylamine donor derivative exhibits intricate decay pathways in the crystal form, including decays ranging from ...
Peter W. McDonald, Subhadeep Das, Arnab Mandal, Gilles Clavier, Clémence Allain, Abhijit Patra, Rémi Métivier   +6 more
wiley   +1 more source

On the thermodynamics of aggregation toward phosphorescent metallomesogens: From electronic tuning to supramolecular design

Aggregate
Two series with three Pt(II) complexes each (PtLPh‐n, PtLFpy‐n) bearing asymmetric tetradentate ligands as dianionic luminophores with variable alkyl chain lengths were synthesized.
Matias E. Gutierrez Suburu, Meik Blanke, Leon Geerkens, Alexander Hepp, Iván Maisuls, Jutta Kösters, Thorben Neumann, Jens Voskuhl, Michael Giese, Cristian A. Strassert   +9 more
doaj   +1 more source

Photophysics of a Near IR Nonlinear Absorber for Waveguide Applications [PDF]

, 2013
Photophysics of a zinc porphyrin-based NIR nonlinear absorber are reported. Welloverlapped two-photon absorption and broad triplet excited state absorption result in a strong NIR nonlinear optical response that is especially useful in waveguide ...
Duncan, Timothy V., Flom, Steven R., Beadie, Guy, Montgomery, Steven R., Rosenberg, Armand, Therien, Michael J., Chi, San-Hui, Shirk, James S., Butler, James J   +8 more
core  

A Layered Two‐Dimensional Hydrogen‐Bonded Organic Framework Based on 2,5,8,11‐Tetrakis(4‐Carboxyphenyl)Perylene Diimide: Structural Nature, Optical and Photophysical Properties

Advanced Optical Materials, EarlyView.
A novel hydrogen‐bonded organic framework (HOF) based on perylene diimide (PDI) is synthesized, structurally and spectroscopically characterized. Its photophysical behavior highlights how supramolecular organizations govern the optical properties, including emission from monomers, aggregates, and excimer‐like species. Structural transformations induced
Mario de la Hoz Tomás, Taito Hashimoto, Boiko Cohen, Yuzuki Murata, Kazuki Shiga, Ryota Hanyu, Ryusei Oketani, Norimitsu Tohnai, Ichiro Hisaki, Abderrazzak Douhal   +9 more
wiley   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source