Preparation, characterization, and luminescent properties of CaAl2O4:Eu2+, Nd3+ nanofibers using core–sheath CaAl2O4:Eu2+, Nd3+/carbon nanofibers as templates
Abstract
CaAl2O4:Eu2+, Nd3+ nanofibers were prepared via the electrospinning process by using core–sheath CaAl2O4:Eu2+, Nd3+/carbon nanofibers as templates, combined with a subsequent annealing treatment. The obtained nanofibers are smooth with tunable diameters ranging from 50 to 120 nm by simply changing the ratio of inorganic precursors to solvent. The intermediate state is composed of hollow CaAl2O4:Eu2+, Nd3+@carbon nanofibers. The formation process, luminescent properties and long lasting performance are investigated. This facile method for synthesizing nanofibers may have potential applications in the field of in vivo imaging and coatings for long lasting phosphors.