title: NIR persistent luminescence of lanthanide ion-doped rare-earth oxycarbonates: the effect of dopants.
abstract: A series of luminescent rare-earth ion-doped hexagonal II-type Gd oxycarbonate phosphors Gd2-xRExO2CO3 (RE = Eu(3+), Yb(3+), Dy(3+)) have been successfully synthesized by thermal decomposition of the corresponding mixed oxalates. The Yb(3+) doped Gd-oxycarbonate has evidenced a high persistent luminescence in the NIR region, that is independent from the temperature and makes this materials particular attractive as optical probes for bioimaging.
authors.affiliation: Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova , via Dodecaneso 31, 16146 Genova, Italy.
authors.forename: Valentina
authors.initials: V
authors.lastname: Caratto
authors.forename: Federico
authors.initials: F
authors.lastname: Locardi
authors.forename: Giorgio Andrea
authors.initials: GA
authors.lastname: Costa
authors.forename: Roberto
authors.initials: R
authors.lastname: Masini
authors.forename: Mauro
authors.initials: M
authors.lastname: Fasoli
authors.forename: Laura
authors.initials: L
authors.lastname: Panzeri
authors.forename: Marco
authors.initials: M
authors.lastname: Martini
authors.forename: Emanuela
authors.initials: E
authors.lastname: Bottinelli
authors.forename: Enrica
authors.initials: E
authors.lastname: Gianotti
authors.forename: Ivana
authors.initials: I
authors.lastname: Miletto
mesh_terms: D002254:Carbonates / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D019265:Spectroscopy, Near-Infrared; D013696:Temperature; D013997:Time Factors; D014961:X-Ray Diffraction; D015018:Ytterbium / Q000737:chemistry
chemical_list: D002254:Carbonates; D028581:Lanthanoid Series Elements; D005682:Gadolinium; D015018:Ytterbium
keywords: NIR luminescence; athermal tunneling luminescence; oxycarbonates; persistent luminescence; rare-earth ions luminescence