title: Phthalocyanine-Gold Nanoparticle Hybrids: Modulating Quenching with a Silica Matrix Shell.
abstract: An asymmetrically substituted zinc phthalocyanine (ZnPc) with a terminal dithiolane group is anchored to Au nanoparticles (NPs) directly or through an interposed silica matrix. Transient absorption spectroscopy shows that the quenching of the ZnPc excited state by AuNPs occurs through a photoinduced electron transfer, the efficiency of which is modulated by the presence of the insulating silica matrix.
authors.affiliation: Instituto Universitario de Tecnologia Química, CSIC-UPV, Avd. de los Naranjos, 46022, Valencia, Spain).
authors.forename: Herme G
authors.initials: HG
authors.lastname: Baldovi
authors.affiliation: Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Avda. de la Universidad s/n, Elche, 03202, Spain.
authors.forename: Vicente M
authors.initials: VM
authors.lastname: Blas-Ferrando
authors.affiliation: Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Avda. de la Universidad s/n, Elche, 03202, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Ortiz
authors.affiliation: Instituto Universitario de Tecnologia Química, CSIC-UPV, Avd. de los Naranjos, 46022, Valencia, Spain).. hgarcia@qim.upv.es.
authors.forename: Hermenegildo
authors.identifier: 0000-0002-9664-493X
authors.initials: H
authors.lastname: Garcia
authors.affiliation: Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Avda. de la Universidad s/n, Elche, 03202, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Fernández-Lázaro
authors.affiliation: Área de Química Orgánica, Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Avda. de la Universidad s/n, Elche, 03202, Spain. asastre@umh.es.
authors.forename: Ángela
authors.identifier: 0000-0002-8835-2486
authors.initials: Á
authors.lastname: Sastre-Santos
keywords: electron transfer; nanoparticles; photochemistry; transient absorption spectroscopy; zinc phthalocyanine