One-dimensional hollow SrS nanostructure with red long-lasting phosphorescence

A novel one-dimensional (1D) hollow nanostructure of SrS:Eu2+, Dy3+ with red long lasting phosphorescence was successfully fabricated by a soft template method followed by annealing treatment at 900 °C. The 1D nanostructures are 60-100 nm in diameter and several hundreds nanometers in length. The TEM image indicates that the 1D nanostructure could be considered to be assembled in lines by lots of nano-hollow spheres. The properties of photoluminescence and afterglow of the 1D nanostructure were also investigated and discussed.