Journal ArticleDOI
Expanded Theory of H- and J-Molecular Aggregates: The Effects of Vibronic Coupling and Intermolecular Charge Transfer.
TLDR
This review outlines advances made in understanding the relationship between aggregate structure and photophysics when vibronic coupling and intermolecular charge transfer are incorporated.Abstract:
The electronic excited states of molecular aggregates and their photophysical signatures have long fascinated spectroscopists and theoreticians alike since the advent of Frenkel exciton theory almost 90 years ago. The influence of molecular packing on basic optical probes like absorption and photoluminescence was originally worked out by Kasha for aggregates dominated by Coulombic intermolecular interactions, eventually leading to the classification of J- and H-aggregates. This review outlines advances made in understanding the relationship between aggregate structure and photophysics when vibronic coupling and intermolecular charge transfer are incorporated. An assortment of packing geometries is considered from the humble molecular dimer to more exotic structures including linear and bent aggregates, two-dimensional herringbone and “HJ” aggregates, and chiral aggregates. The interplay between long-range Coulomb coupling and short-range charge-transfer-mediated coupling strongly depends on the aggregate ...read more
Citations
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Journal ArticleDOI
Molecular polaritons for controlling chemistry with quantum optics
TL;DR: In this article, the basic physical principles and consequences of strong light-matter coupling common to molecular ensembles embedded in UV-visible or infrared cavities are discussed using a microscopic quantum electrodynamics formulation.
Journal ArticleDOI
Invoking ultralong room temperature phosphorescence of purely organic compounds through H-aggregation engineering
Jie Yuan,Shuang Wang,Yu Ji,Runfeng Chen,Qi Zhu,Yongrong Wang,Chao Zheng,Ye Tao,Quli Fan,Wei Huang +9 more
TL;DR: In this paper, a series of CN-substituted phenylcarbazole isomers, which show varied aggregated structures and extraordinary organic ultralong room-temperature phosphorescence (OURTP) with lifetime up to 0.92 s.
Journal ArticleDOI
Supramolecularly Engineered J-Aggregates Based on Perylene Bisimide Dyes.
Markus Hecht,Frank Würthner +1 more
TL;DR: This Account elucidate how a combination of steric constraints and hydrogen bonding receptor sites can guide the self-assembly of PBI dyes into slip-stacked packing motifs with J-type exciton coupling and discusses the supramolecular polymerization of multiple hydrogen-bonding PBI strands in organic and aqueous media.
Journal ArticleDOI
Dynamically Monitoring Cell Viability in a Dual‐Color Mode: Construction of an Aggregation/Monomer‐Based Probe Capable of Reversible Mitochondria‐Nucleus Migration
TL;DR: A unique fluorescent probe capable of reversible migration between mitochondria and nucleus, as well as detection of cell viability in a dual-color mode is presented, which enables the dynamic visualization of apoptosis process.
Journal ArticleDOI
Supramolecular Polymorphism in One-Dimensional Self-Assembly by Kinetic Pathway Control
Marius Wehner,Merle I. S. Röhr,Michael Bühler,Vladimir Stepanenko,Wolfgang Wagner,Frank Würthner +5 more
TL;DR: This work contributes to the understanding of polymorphism at the lowest level of hierarchy that is the generation of self-assembled 1D aggregate structures by providing insights into the thermodynamic stability of the supramolecular polymorphs of PBI-4 and the kinetics for their interconversion.
References
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Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
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Journal ArticleDOI
Organic Thin Film Transistors for Large Area Electronics
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Journal ArticleDOI
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