Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Carrier-Exciton Interactions in Crystalline Anthracene
View through CrossRef
Quenching of delayed fluorescence by injected holes and electrons is observed when either monomolecular or bimolecular exciton processes afford the dominant exciton decay mechanism. With small triplet exciton densities, injected carriers reduce the triplet exciton lifetime, and hence the delayed fluorescence intensity. With high triplet exciton densities this effect is unimportant; however, the over-all triplet-triplet annihilation rate constant is found to increase while the singlet component of the annihilation rate constant decreases in the presence of charge carriers. These effects are discussed in terms of triplet pair formation and annihilation.
Title: Carrier-Exciton Interactions in Crystalline Anthracene
Description:
Quenching of delayed fluorescence by injected holes and electrons is observed when either monomolecular or bimolecular exciton processes afford the dominant exciton decay mechanism.
With small triplet exciton densities, injected carriers reduce the triplet exciton lifetime, and hence the delayed fluorescence intensity.
With high triplet exciton densities this effect is unimportant; however, the over-all triplet-triplet annihilation rate constant is found to increase while the singlet component of the annihilation rate constant decreases in the presence of charge carriers.
These effects are discussed in terms of triplet pair formation and annihilation.
Related Results
Dynamics of A-exciton and spin relaxation in WS<sub>2</sub> and WSe<sub>2</sub> monolayer
Dynamics of A-exciton and spin relaxation in WS<sub>2</sub> and WSe<sub>2</sub> monolayer
Two-dimensional transitional metal dichalcogenide (2D TMD) emerges as a good candidate material in optoelectronics and valleytronics due to its particular exciton effect and strong...
Measurement of Anisotropic Exciton Transport Lengths in Organic Crystals Using Photoetching
Measurement of Anisotropic Exciton Transport Lengths in Organic Crystals Using Photoetching
AbstractMeasuring anisotropic exciton transport in organic crystals goes beyond just assessing one‐dimensional (1D) transport. It offers a deeper understanding of how molecular pac...
Analytic Rate Theory of Polariton Relaxation that Explains Long Polariton Lifetime
Analytic Rate Theory of Polariton Relaxation that Explains Long Polariton Lifetime
Hybridization of a molecular exciton with a quantized photon inside an optical cavity creates a polariton. Despite extensive experimental investigations, the apparent lifetime of t...
Theory of Exciton Spontaneous Emission in Semiconductor Mesoscopic Quantum Disks Embedded in a Planar Microcavity
Theory of Exciton Spontaneous Emission in Semiconductor Mesoscopic Quantum Disks Embedded in a Planar Microcavity
We theoretically discuss the exciton spontaneous emission dynamics in mesoscopic quantum disks placed in an ideal planar microcavity. The disks approach macroscopic quantum w...
Photophysics of fused ring electron acceptors for photovoltaic applications
Photophysics of fused ring electron acceptors for photovoltaic applications
<p>Organic photovoltaic cells (OPVs) have received significant interest over the last decade as they offer the potential of cheap renewable energy via direct photon to electr...
Singlet Fission in Anthracene in Solution
Singlet Fission in Anthracene in Solution
Photophysics of anthracene has extensively been studied, such that it serves as a classic standard for understanding photophysics of polycyclic aromatic hydrocarbons. Anthracene un...
Exciton size and binding energy limitations in one-dimensional organic materials
Exciton size and binding energy limitations in one-dimensional organic materials
In current organic photovoltaic devices, the loss in energy caused by the charge transfer step necessary for exciton dissociation leads to a low open circuit voltage, being one of ...
Superfluidity in exciton bilayer systems : Josephson effect and collective modes as definitive identification-markers
Superfluidity in exciton bilayer systems : Josephson effect and collective modes as definitive identification-markers
This thesis explores superfluidity in exciton bilayer systems, semiconductor structures with two thin conducting layers, one doped with electrons and the other with holes, separate...