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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Fused‐ring induced end‐on orientation in conjugated molecular dyads toward efficient single‐component organic solar cells
Dongdong Xia,Shengxi Zhou,Wen Liang Tan,Safakath Karuthedath,Chengyi Xiao,Chaowei Zhao,Frédéric Laquai,Christopher R. McNeill,Weiwei Li +8 more
TL;DR: In this paper , the preferential end-on orientation was obtained in a conjugated molecular dyad that contains a convolutional backbone as donor and perylene bisimide side units as acceptor.
Journal ArticleDOI
Tetrapyrrole Macroheterocyclic Compounds. Structure–Property Relationships
Tamara V. Basova,Dmitry V. Belykh,A. S. Vashurin,Darya D. Klyamer,Oscar I. Koifman,Pavel O. Krasnov,Tatyana N. Lomova,I. V. Loukhina,Elena V. Motorina,Georgy L. Pakhomov,Maxim S. Polyakov,Alexander S. Semeikin,Pavel A. Stuzhin,Aleksandr S. Sukhikh,Vlad V. Travkin +14 more
Journal ArticleDOI
Guest Entrapment in Metal‐Organic Nanosheets for Quantifiably Tuneable Luminescence
Dylan A. Sherman,Mario Gutiérrez,I. Griffiths,Samraj Mollick,Nader Amin,Abderrazzak Douhal,Jin-Chong Tan +6 more
TL;DR: In this paper , the bottom-up synthesis of few-layer thin metal-organic nanosheets (ZIF-7-III) via facile low-energy salt-templating is reported.
Journal ArticleDOI
A Marvel of Chiral Squaraine Aggregates: Chiroptical Spectra beyond the Exciton Model
D. Giavazzi,Marvin F. Schumacher,Luca Grisanti,Mattia Anzola,Francesco Di Maiolo,Jennifer Zablocki,Arne Lützen,Manuela Schiek,Anna Painelli +8 more
TL;DR: Squaraines are quadrupolar molecular dyes forming aggregates with remarkable structure-correlated excitonic properties within the visible to near-infrared spectral range as discussed by the authors.
Scaling law for Kasha's rule in photoexcited subwavelength molecular aggregates
TL;DR: In this paper, the photophysics of molecular aggregates from a quantum optics perspective, with emphasis on deriving scaling laws for the fast non-radiative relaxation of collective electronic excitations, referred to as Kasha's rule, was studied.
References
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