Triplet-triplet energy transfer in multicomponent organic systems is usually entirely ascribed to a Dexter-type mechanism involving only short-range donor/acceptor interactions. We demonstrate that the presence of molecular oxygen introduces a perturbation to the electronic structure of one of the involved moieties which can induce a large increase in the spin-forbidden transition oscillator strength so that the otherwise negligible Forster contribution dominates the overall energy transfer rate.

Monguzzi, A., Tubino, R., Salamone, M., Meinardi, F. (2010). Energy transfer enhancement by oxygen perturbation of spin-forbidden electronic transitions in aromatic systems. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 82(12), 125113 [10.1103/PhysRevB.82.125113].

Energy transfer enhancement by oxygen perturbation of spin-forbidden electronic transitions in aromatic systems

MONGUZZI, ANGELO MARIA;TUBINO, RICCARDO;SALAMONE, MATTEO MARCO;MEINARDI, FRANCESCO
2010

Abstract

Triplet-triplet energy transfer in multicomponent organic systems is usually entirely ascribed to a Dexter-type mechanism involving only short-range donor/acceptor interactions. We demonstrate that the presence of molecular oxygen introduces a perturbation to the electronic structure of one of the involved moieties which can induce a large increase in the spin-forbidden transition oscillator strength so that the otherwise negligible Forster contribution dominates the overall energy transfer rate.
Articolo in rivista - Articolo scientifico
spin forbidden transitions; up-conversion
English
2010
82
12
125113
125113
open
Monguzzi, A., Tubino, R., Salamone, M., Meinardi, F. (2010). Energy transfer enhancement by oxygen perturbation of spin-forbidden electronic transitions in aromatic systems. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 82(12), 125113 [10.1103/PhysRevB.82.125113].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/17694
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