Synthesis and the temperature-dependent luminescent properties of SrWO4:Eu3 + ultralong nanowire phosphors

• SrWO4:Eu3 + nanowires with high aspect ratio were prepared by a solvothermal method via a poor solvent induced self-assembly process.
• The ultralong nanowire phosphor exhibits strong red luminescent property and have many merits.
• SrWO4:Eu3 + nanowires present a potential application as luminescent thermometer in the temperature range from 310 to 450 K.

SrWO4:Eu3 + nanowires with high aspect ratio were prepared by a solvothermal method via a poor solvent induced self-assembly process. The luminescence properties of SrWO4:Eu3 + nanowires were investigated in detail. In the emission spectrum excited at 277 nm, the 5D0 → 7F2 is much stronger than the 5D0 → 7F1, indicating that Eu3 + ions occupy low symmetry sites in SrWO4 lattices. The broad excitation band centered at 277 nm is assigned to the overlap of WO42 − absorption and charge transfer transition between Eu3 + and O2 −. The temperature-dependent luminescent properties are also investigated in a wide temperature range from 100 to 450 K, it reveals that SrWO4:Eu3 + is a potential luminescent thermometer in the temperature range from 310 K to 450 K.

SrWO4:Eu3 + nanowires with high aspect ratio were prepared via a solvothermal method. The temperature-dependent photoluminescence properties of SrWO4:Eu3 + nanowires were investigated, the result exhibits that SrWO4:Eu3 + nanowire is a potential luminescent thermometer in the range from 310 K to 450 K.Figure optionsDownload as PowerPoint slide