Synthesis and the temperature-dependent luminescent properties of SrWO4:Eu3+ ultralong nanowire phosphors
| Autor: | Sun-Shou Cai, Jing-Yang Zhou, Yue Gao, Jingchao Zhang, Baiqing Yuan, Ren-Chun Zhang, Daojun Zhang |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nanowire Phosphor Nanotechnology 02 engineering and technology Atmospheric temperature range 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ion Inorganic Chemistry Excited state Materials Chemistry Physical chemistry Emission spectrum Physical and Theoretical Chemistry Absorption (chemistry) 0210 nano-technology Luminescence |
| Zdroj: | Inorganic Chemistry Communications. 71:50-53 |
| ISSN: | 1387-7003 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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