Triplet-triplet annihilation (TTA) based up-conversion is a promising strategy for light harvesting the low-energy tail of the solar spectrum with photovoltaic technologies. Here, we present a bi-component system for photon managing via TTA that allows bypassing the classical statistic limit of 2/5 in the singlet generation, achieving a near unitary conversion efficiency. This result is obtained because of the peculiar relative position of the triplet and singlet energy levels of perylene, used as up-converter and emitter. The system shows a record red-to-blue external up-conversion yield of ∼10% under an irradiance of 1 sun. This journal is

Hoseinkhani, S., Tubino, R., Meinardi, F., Monguzzi, A. (2015). Achieving the photon up-conversion thermodynamic yield upper limit by sensitized triplet-triplet annihilation. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17(6), 4020-4024 [10.1039/c4cp03936j].

Achieving the photon up-conversion thermodynamic yield upper limit by sensitized triplet-triplet annihilation

TUBINO, RICCARDO
Secondo
;
MEINARDI, FRANCESCO
Penultimo
;
MONGUZZI, ANGELO MARIA
Ultimo
2015

Abstract

Triplet-triplet annihilation (TTA) based up-conversion is a promising strategy for light harvesting the low-energy tail of the solar spectrum with photovoltaic technologies. Here, we present a bi-component system for photon managing via TTA that allows bypassing the classical statistic limit of 2/5 in the singlet generation, achieving a near unitary conversion efficiency. This result is obtained because of the peculiar relative position of the triplet and singlet energy levels of perylene, used as up-converter and emitter. The system shows a record red-to-blue external up-conversion yield of ∼10% under an irradiance of 1 sun. This journal is
Articolo in rivista - Articolo scientifico
Physical and Theoretical Chemistry; Physics and Astronomy (all)
English
2015
17
6
4020
4024
reserved
Hoseinkhani, S., Tubino, R., Meinardi, F., Monguzzi, A. (2015). Achieving the photon up-conversion thermodynamic yield upper limit by sensitized triplet-triplet annihilation. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17(6), 4020-4024 [10.1039/c4cp03936j].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/80051
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