Straightforward fabrication of luminescent-magnetic GdF3:Yb3+, Ho3+@void@SiO2 wire-in-tube structured nanofibers

GdF 3 :Yb 3+ ,Ho 3+ @void@SiO 2 wire-in-tube structured nanofibers (WITSN) with bifunctional characteristic of up-conversion luminescence and magnetism properties are successfully obtained by self-created technique combining monoaxial electrospinning and single-crucible fluorination technology. The products are pure orthorhombic phase. GdF 3 :Yb 3+ ,Ho 3+ @void@SiO 2 WITSN exhibit large specific surface area and distinctive void space structure. The unique structure of the prepared nanofibers expands the new field of one-dimensional special morphology nanomaterials . In addition, GdF 3 :Yb 3+ ,Ho 3+ @void@SiO 2 WITSN have the bifunctionality of excellent up-conversion luminescent and paramagnetic properties. Materials have broad applications prospects in display, lighting, optical imaging , magnetic resonance imaging, and biomedicine. This work presents an innovative and high-efficient approach to construct photoluminescence-magnetism bifunctional GdF 3 :Yb 3+ ,Ho 3+ @void@SiO 2 WITSN, providing a new idea for the preparation of coated structured nanomaterials with excellent multifunctional characteristics.