title: An electron paramagnetic resonance spectroscopic investigation on the growth mechanism of NaYF4:Gd nanocrystals.
abstract: Doped nanocrystals of NaYF(4) and NaGdF(4) are currently studied as upconversion luminescence markers and magnetic resonance imaging contrast agents. An EPR investigation on the growth mechanism of NaYF(4):Gd and NaGdF(4) nanocrystals showed that these nanomaterials grow in the standard oleic acid-based reaction medium by a dissolution/recrystallization mechanism and not by the aggregation or oriented attachment of smaller particles.
authors.affiliation: Inorganic Chemistry 1, Institute of Chemistry, University of Osnabrueck, Barbarastrasse 7, 49076 Osnabrueck, Germany.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Komban
authors.forename: Johann P
authors.initials: JP
authors.lastname: Klare
authors.forename: Benjamin
authors.initials: B
authors.lastname: Voss
authors.forename: Jörg
authors.initials: J
authors.lastname: Nordmann
authors.forename: Heinz-Jürgen
authors.initials: HJ
authors.lastname: Steinhoff
authors.forename: Markus
authors.initials: M
authors.lastname: Haase
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D005708:Gallium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D015019:Yttrium / Q000737:chemistry*
chemical_list: D015019:Yttrium; D005708:Gallium