Results 21 to 30 of about 24,150 (266)

Temperature-Enhanced Exciton Emission from GaAs Cone–Shell Quantum Dots

open access: yesNanomaterials, 2023
The temperature-dependent intensities of the exciton (X) and biexciton (XX) peaks from single GaAs cone–shell quantum dots (QDs) are studied with micro photoluminescence (PL) at varied excitation power and QD size.
Christian Heyn   +4 more
doaj   +1 more source

Data-Driven and Multiscale Modeling of DNA-Templated Dye Aggregates

open access: yesMolecules, 2022
Dye aggregates are of interest for excitonic applications, including biomedical imaging, organic photovoltaics, and quantum information systems. Dyes with large transition dipole moments (μ) are necessary to optimize coupling within dye aggregates ...
Austin Biaggne   +8 more
doaj   +1 more source

Exciton percolation and exciton coherence [PDF]

open access: yesThe Journal of Chemical Physics, 1977
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/69756/2/JCPSA6-66-7-3301-1 ...
Argyrakis, Panos, Kopelman, Raoul
openaire   +2 more sources

The electronic structure of benzene from a tiling of the correlated 126-dimensional wavefunction

open access: yesNature Communications, 2020
The electronic structure of benzene has been a test bed for competing theories along the years. Here the authors show via quantum chemistry calculations that the wavefunction of benzene can be partitioned into tiles which show that the two electron spins
Yu Liu   +3 more
doaj   +1 more source

Photocrosslinking Probes Proximity of Thymine Modifiers Tethering Excitonically Coupled Dye Aggregates to DNA Holliday Junction

open access: yesMolecules, 2022
A DNA Holliday junction (HJ) has been used as a versatile scaffold to create a variety of covalently templated molecular dye aggregates exhibiting strong excitonic coupling. In these dye-DNA constructs, one way to attach dyes to DNA is to tether them via
Shibani Basu   +5 more
doaj   +1 more source

Orientation-Mediated Luminescence Enhancement and Spin-Orbit Coupling in ZnO Single Crystals

open access: yesNanomaterials, 2022
Temperature-, excitation wavelength-, and excitation power-dependent photoluminescence (PL) spectroscopy have been utilized to investigate the orientation-modulated near band edge emission (NBE) and deep level emission (DLE) of ZnO single crystals (SCs).
Ali Hassan   +6 more
doaj   +1 more source

Anyon excitons [PDF]

open access: yesPhysical Review Letters, 1993
We propose a model of an anyon exciton consisting of a hole and several anyons, and apply it to the spectroscopy of an incompressible quantum liquid. Fractionalization of the electron charge makes properties of such entities quite different from those of usual magnetoexcitons.
Rashba, E.I., Portnoi, M.E.
openaire   +3 more sources

Solution‐Processed Faraday Rotators Using Single Crystal Lead Halide Perovskites

open access: yesAdvanced Science, 2020
Lead halide perovskites (LHPs) have become a promising alternative for a wide range of optoelectronic devices, thanks to their solution‐processability and impressive optical and electrical properties. More recently, LHPs have been investigated in magneto‐
Randy P Sabatini   +9 more
doaj   +1 more source

Excitons dressed by a sea of excitons [PDF]

open access: yesThe European Physical Journal B, 2004
We here consider an exciton $i$ embedded in a sea of $N$ identical excitons 0. If the excitons are bosonized, a bosonic enhancement factor, proportional to $N$, is found for $i=0$. If the exciton composite nature is kept, this enhancement not only exists for $i=0$, but also for any exciton having a center of mass momentum equal to the sea exciton ...
Betbeder-Matibet, Odile   +1 more
openaire   +2 more sources

Simulation of Solvatochromic Phenomena in Xanthione Using Explicit Solvent Methods

open access: yesMolecules
Xanthione is a sulfated polycyclic aromatic hydrocarbon which exhibits unique anti-Kasha properties and substantial sensitivity to its medium. Due to this sensitivity however, this makes xanthione-based systems very difficult to simulate.
Anjay Manian   +3 more
doaj   +1 more source

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