title: Preferential suppression of high-energy upconverted emissions of Tm3+ by Dy3+ ions in Tm3+/Dy3+/Yb3+-doped LiYF4 colloidal nanocrystals.
abstract: The intensity of high energy UV and blue upconverted emissions of Tm(3+) ions in Tm(3+)/Yb(3+) co-doped LiYF(4) colloidal nanocrystals was selectively reduced compared to the NIR emission at 802 nm. This was achieved by doping a small amount of Dy(3+) ions into the host matrix.
authors.affiliation: Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur 741 252, India.
authors.forename: Venkataramanan
authors.initials: V
authors.lastname: Mahalingam
authors.forename: Rafik
authors.initials: R
authors.lastname: Naccache
authors.forename: Fiorenzo
authors.initials: F
authors.lastname: Vetrone
authors.forename: John A
authors.initials: JA
authors.lastname: Capobianco