We have investigated the influence of the magnetic field on the triplet-triplet annihilation process in organic films using a model multicomponent system for blue delayed up-conversion photoluminescence. In such a way, we have derived simple analytical expressions to estimate the overall annihilation probability, outlining the peculiar role played by the disorder and demonstrating that the triplet-triplet fusion in solid films is a diffusion limited process. © 2009 The American Physical Society.
Mezyk, J., Tubino, R., Monguzzi, A., Mech, A., Meinardi, F. (2009). Effect of an External Magnetic Field on the Up-Conversion Photoluminescence of Organic Films: The Role of Disorder in Triplet-Triplet Annihilation. PHYSICAL REVIEW LETTERS, 102(8), 087404 [10.1103/PhysRevLett.102.087404].
Effect of an External Magnetic Field on the Up-Conversion Photoluminescence of Organic Films: The Role of Disorder in Triplet-Triplet Annihilation
TUBINO, RICCARDO;MONGUZZI, ANGELO MARIA;MEINARDI, FRANCESCO
2009
Abstract
We have investigated the influence of the magnetic field on the triplet-triplet annihilation process in organic films using a model multicomponent system for blue delayed up-conversion photoluminescence. In such a way, we have derived simple analytical expressions to estimate the overall annihilation probability, outlining the peculiar role played by the disorder and demonstrating that the triplet-triplet fusion in solid films is a diffusion limited process. © 2009 The American Physical Society.
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