title: Excitation transfer mechanism along the visible to the Near-IR in rhodamine J-heteroaggregates.
abstract: 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.
authors.affiliation: Instituto de Ciencia de Materiales de Sevilla (CSIC-US), c/Américo Vespucio 49, 41092 Sevilla, Spain.
authors.forename: Juan R
authors.initials: JR
authors.lastname: Sánchez-Valencia
authors.forename: Johann
authors.initials: J
authors.lastname: Toudert
authors.forename: Lola
authors.initials: L
authors.lastname: González-García
authors.forename: Agustín R
authors.initials: AR
authors.lastname: González-Elipe
authors.forename: Angel
authors.initials: A
authors.lastname: Barranco