title: Intercrystalline distal-effect on the afterglow phenomenon in photoluminescent SrAl2O4:CeIII, Ln nanotube growth.
abstract: We report a new method for the synthesis of photoluminescent SrAl(2)O(4):Ce(3+), Dy(3+), Eu(2+) nanotubes, PL-SNT:Ce(III), Ln, using solid-state reaction and post-annealing approach. This new optical nanotubular structure was characterized by HRTEM, SEM, AFM, EDX, steady-state and time-resolved PL spectroscopy. A series of f-f and f-d-transitions with light emission in structured bands peaking at 488 nm arising from the polymorphism of the host lattice was correlated with an intercrystalline distal-effect on the afterglow phenomenon.
authors.affiliation: Centre for Research in Ceramic and Composite Materials (CICECO), Ceramic and Glass Engineering Department, University of Aveiro, Aveiro, Portugal. f2698@ua.pt
authors.forename: Nadia Khaled
authors.initials: NK
authors.lastname: Zurba
authors.forename: Igor
authors.initials: I
authors.lastname: Bdikin
authors.forename: Andrei
authors.initials: A
authors.lastname: Kholkin
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg
authors.forename: José M F
authors.initials: JM
authors.lastname: Ferreira