Excitation transfer mechanism along the visible to the Near-IR in rhodamine J-heteroaggregates.
An enhanced fluorescent emission of the dye Rhodamine 800 in the Near-IR is observed in the presence of other xanthene dye molecules (RhX) when they are hosted in different matrices due to the formation of a new type of fluorescent J-heteroaggregates. This enhanced emission of the acceptor occurs despite the low spectral overlapping and the low quantum yield of Rh800.
Sánchez-Valencia
Juan R
JR
Instituto de Ciencia de Materiales de Sevilla (CSIC-US), c/Américo Vespucio 49, 41092 Sevilla, Spain.
Toudert
Johann
J
González-García
Lola
L
González-Elipe
Agustín R
AR
Barranco
Angel
A