| Autor: |
Bakhmet’ev, V. V., Malygin, V. V., Lebedev, L. A., Keskinova, M. V., Sychev, M. M. |
| Zdroj: |
Journal of Optical Technology; September 2017, Vol. 84 Issue: 9 p642-646, 5p |
| Abstrakt: |
A technique for the synthesis of NaBaPO_4:Eu^2+ phosphors with increased dispersity via sol-gel precipitation and subsequent high-temperature annealing in molten NaCl is developed. The synthesized NaBaPO_4:Eu^2+ phosphor has a nanocrystalline structure and its annealing in molten NaCl is shown to reduce the average particle size by a factor of 3.8 while increasing the content of the finely dispersed (i.e., particle sizes <1 μm) fraction of the phosphor by a factor of 11 by comparison with the phosphor synthesized by the traditional sol-gel method. We establish that the synthesized NaBaPO_4:Eu^2+ phosphors contain four types of luminescence centers and construct their resulting energy diagram. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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