title: Efficient white light emission by upconversion in Yb(3+)-, Er(3+)- and Tm(3+)-doped Y2BaZnO5.
abstract: We report efficient white upconversion luminescence in Yb(3+)-, Er(3+)- and Tm(3+)-doped monophasic and biphasic Y(2)BaZnO(5) phosphors under 977 nm near-infrared excitation and at low excitation power densities (down to ∼25 mW mm(-2)).
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, UK.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Etchart
authors.forename: Mathieu
authors.initials: M
authors.lastname: Bérard
authors.forename: Marine
authors.initials: M
authors.lastname: Laroche
authors.forename: Arnaud
authors.initials: A
authors.lastname: Huignard
authors.forename: Ignacio
authors.initials: I
authors.lastname: Hernández
authors.forename: William P
authors.initials: WP
authors.lastname: Gillin
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Curry
authors.forename: Anthony K
authors.initials: AK
authors.lastname: Cheetham