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- Title
Achieving green-red-tunable emission through Tb-Eu energy transfer in SrY(SiO): Tb, Eu phosphors.
- Authors
Zhang, Xinguo; Mo, Fuwang; Wu, Zhan-Chao; Chen, Yibo
- Abstract
A series of color-tunable green-red-emitting SrY(SiO): Tb, Eu (SYSO: Tb, Eu) were synthesized by solid-state method. The crystal structure and dopant-occupied sites of SYSO: Tb, Eu were investigated by XRD-Rietveld refinement. Furthermore, the corresponding luminescent properties were studied in detail. The energy transfer (ET) process from Tb to Eu was found to be resonant type via exchange interaction with ET efficiency of ~ 85%. By varying the Tb/Eu ratio, the emitting color can be tuned from green, yellow, orange and eventually to red. The temperature-dependent PL spectra revealed that SYSO: Tb, Eu phosphor has good thermal stability. All these properties indicate that the developed phosphor may potentially be used as single-component multicolor-emitting phosphors.
- Subjects
ENERGY transfer; CHEMICAL synthesis; SOLID state chemistry; LUMINESCENCE; PHOSPHORS
- Publication
Journal of Materials Science, 2018, Vol 53, Issue 5, p3613
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-017-1746-6