title: Tuning from blue to magenta the up-converted emissions of YF3:Tm3+/Yb3+ nanocrystals.
abstract: Monodisperse YF3:Tm3+/Yb3+ nanocrystals have been synthesized to explore the visible up-converting properties under near infrared (975 nm) excitation. It has been found that the nanoparticles exhibit intense red up-converted emissions, in addition to the characteristic UV and blue Tm3+-bands. It is demonstrated that, by carefully selecting Tm3+ and Yb3+ contents, the relative intensity of the different emissions can be changed producing an overall emission colour that can be tuned from blue to magenta.
authors.affiliation: Departamento de Física de Materiales (Módulo 04), Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente, 7, 28049, Madrid, Spain. marta.quintanilla@uam.es
authors.forename: Marta
authors.initials: M
authors.lastname: Quintanilla
authors.forename: Nuria O
authors.initials: NO
authors.lastname: Núñez
authors.forename: Eugenio
authors.initials: E
authors.lastname: Cantelar
authors.forename: Manuel
authors.initials: M
authors.lastname: Ocaña
authors.forename: Fernando
authors.initials: F
authors.lastname: Cussó
mesh_terms: D003116:Color; D007834:Lasers; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012031:Refractometry; D015019:Yttrium / Q000737:chemistry*
chemical_list: D015019:Yttrium