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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Gaussian process regression for absorption spectra analysis of molecular dimers
TL;DR: In this article , an approach based on a machine learning technique, where the parameters for the numerical calculations are chosen from Gaussian Process Regression (GPR), is presented. But the approach does not converge to an optimal parameter set, but provides information about the complete parameter space, which allows for example to identify extended parameter regions where numerical spectra are consistent with the experimental one.
Journal ArticleDOI
Cooperative subwavelength molecular quantum emitter arrays
TL;DR: In this paper , the authors provide analytical and numerical results on the modification of super and sub-radiance in molecular rings of dipoles including excitations of the vibrational degrees of freedom.
Journal ArticleDOI
Arrangements of Fluorophores in the Salts of Imidazole Tethered Anthracene Derivative with Pyridinedicarboxylic Acids Influencing Photoluminescence
TL;DR: The selfassemblies of 9-N-(3-imidazolylpropylamino)methylanthracene (Hanthraimida) with pyridinedicarboxylic acid and cocrystals with 1,3-dihydroxybenzenes were analysed to sort out their impacts on the aggregation induced emissions in solid state as discussed by the authors .
Journal ArticleDOI
Photovoltaic Effect in Phthalocyanine-Based Organic Solar Cells: 2. Trapping of Molecular Excitons by Impurities
V. A. Benderskii,I. P. Kim +1 more
TL;DR: In this paper, a diffusion-controlled bimolecular reaction model was proposed to determine the ME trapping rate at a fixed impurity concentration NI in terms of the diffusion length lS, the minimum radius of approach of partners a0, and the Forster radius RS.
Journal ArticleDOI
Unequal Perylene Diimide Twins in a Quadruple Assembly.
Shuqi Chen,Shishi Feng,Albert J. Markvoort,Cankun Zhang,Enyang Zhou,Wanzhen Liang,Hui-Jun Zhang,Yun-Bao Jiang,Jianbin Lin +8 more
TL;DR: In this paper , four octatrayne-bridged ortho-perylene diimide (PDI) dyads self-assemble into a quadruple assembly (POP)4 both in solution and in the solid state.
References
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Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
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Coherence in Spontaneous Radiation Processes
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Journal ArticleDOI
Organic Thin Film Transistors for Large Area Electronics
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Journal ArticleDOI
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TL;DR: Electronic Coupling in Oligoacene Derivatives: Factors Influencing Charge Mobility, and the Energy-Splitting-in-Dimer Method 3.1.