Spherical shape with fast decaying property of solvothermally grown (Y,Gd)BO3:Eu nanophosphor

Monodispersed spherical (Y,Gd)BO₃:Eu³⁺ phosphors have been fabricated by a solvothermal method. Each particle is composed of crystalline hexagonal phase primary nanoparticles (∼10 nm in diameter), leading to an abnormal energy-dependent decay behavior, as compared to a micron scale phosphor prepared by the conventional solid-state reaction method. The faster luminescence decay excited under a specific wavelength region making the resultant phosphor suitable for the up-coming display devices, such as 3-dimensional (3D) imaging.