Sensitized triplet–triplet annihilation in multicomponent organic systems is already demonstrated to be suitable for obtaining efficient up-conversion in solution with excitation power densities comparable to solar irradiance, but loses efficiency in the solid state. Here, it is demonstrated that it is possible to reduce this limitation by incorporating a standard bicomponent system in polymer nanoparticles. The confinement of all of the involved photophysical processes in a nanometer-scale volume makes each nanoparticle a single and isolated high-efficiency up-converting unit. As a consequence, these dual-dye-loaded nanoparticles can be used to produce drop-cast films, as well as dopants for polymeric matrices, preserving the performances of the starting moieties in solution.

Monguzzi, A., Frigoli, M., Larpent, C., Tubino, R., Meinardi, F. (2012). Low-Power-Photon Up-Conversion in Dual-Dye-Loaded Polymer Nanoparticles. ADVANCED FUNCTIONAL MATERIALS, 22(1), 139-143 [10.1002/adfm.201101709].

Low-Power-Photon Up-Conversion in Dual-Dye-Loaded Polymer Nanoparticles

MONGUZZI, ANGELO MARIA
;
TUBINO, RICCARDO;MEINARDI, FRANCESCO
2012

Abstract

Sensitized triplet–triplet annihilation in multicomponent organic systems is already demonstrated to be suitable for obtaining efficient up-conversion in solution with excitation power densities comparable to solar irradiance, but loses efficiency in the solid state. Here, it is demonstrated that it is possible to reduce this limitation by incorporating a standard bicomponent system in polymer nanoparticles. The confinement of all of the involved photophysical processes in a nanometer-scale volume makes each nanoparticle a single and isolated high-efficiency up-converting unit. As a consequence, these dual-dye-loaded nanoparticles can be used to produce drop-cast films, as well as dopants for polymeric matrices, preserving the performances of the starting moieties in solution.
Articolo in rivista - Articolo scientifico
Triplet-Triplet Annihilation; Excited-State; Enhancement; Films; Chromophore; Excitation; Efficiency; Sensor; Light; Blue
English
2012
22
1
139
143
none
Monguzzi, A., Frigoli, M., Larpent, C., Tubino, R., Meinardi, F. (2012). Low-Power-Photon Up-Conversion in Dual-Dye-Loaded Polymer Nanoparticles. ADVANCED FUNCTIONAL MATERIALS, 22(1), 139-143 [10.1002/adfm.201101709].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/29574
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