Journal
JOURNAL OF MATERIALS SCIENCE
Volume 53, Issue 5, Pages 3613-3623Publisher
SPRINGER
DOI: 10.1007/s10853-017-1746-6
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Funding
- National Natural Science Foundation of China [21601081, 51472132]
- Scientific Research Starting Foundation of Southern Medical University [PY2016N004]
- Natural Science Foundation of Guangdong Province [2017A030313255]
- doctor's scientific research foundation of Hezhou University [HZUBS20 1504]
- project to enhance the scientific research ability of young teachers in colleges and universities of Guangxi [2017KY0653]
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A series of color-tunable green-red-emitting Sr3Y2(Si3O9)(2): Tb3+, Eu3+ (SYSO: Tb3+, Eu3+) were synthesized by solid-state method. The crystal structure and dopant-occupied sites of SYSO: Tb3+, Eu3+ were investigated by XRD-Rietveld refinement. Furthermore, the corresponding luminescent properties were studied in detail. The energy transfer (ET) process from Tb3+ to Eu3+ was found to be resonant type via exchange interaction with ET efficiency of 85%. By varying the Tb3+/Eu3+ ratio, the emitting color can be tuned from green, yellow, orange and eventually to red. The temperature-dependent PL spectra revealed that SYSO: Tb3+, Eu3+ phosphor has good thermal stability. All these properties indicate that the developed phosphor may potentially be used as single-component multicolor-emitting phosphors.
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