Luminescence and energy transfer of Tm 3+ and Dy 3+ co-doped Na 3 ScSi 2 O 7 phosphors
Люминесценция и перенос энергии в фосфорах Na₃ScSi₂O₇, совместно легированных ионами Tm³⁺ и Dy³⁺
2019-01-01
SCID: 54.1/h3jmtzrn
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Na3ScSi2O7 phosphorsTm3+ and Dy3+ co-dopingenergy transfer (Tm3+→Dy3+)photoluminescence (PL)white light emitting diodes (WLEDs)
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Abstract (AI)
A series of Tm 3+ and Dy 3+ ions single- or co-doped Na 3 ScSi 2 O 7 (NSSO) phosphors were prepared by a conventional solid state reaction method.
Key Findings
1
Co-doping with Tm3+ and Dy3+ enables tunable emission color via Tm3+-to-Dy3+ energy transfer.
2
NSSO:0.04Tm3+,0.13Dy3+ has chromaticity coordinates (0.3195, 0.3214), close to ideal white light (0.333, 0.33).
3
The luminescence, fluorescence decay, and energy transfer behavior indicate NSSO:Tm3+,Dy3+ is a promising candidate for white light emitting diode (WLED) applications.
4
Tm3+ and Dy3+ single- and co-doped Na3ScSi2O7 (NSSO) phosphors were successfully prepared via conventional solid state reaction, with XRD matching JCPDS standard data.
5
Under UV excitation, singly doped NSSO:Tm3+ exhibits characteristic blue emission and NSSO:Dy3+ exhibits characteristic yellow emission.
Research Object
Tm3+ and Dy3+ single- and co-doped Na3ScSi2O7 (NSSO) phosphors prepared by solid-state reaction
Research Subject
Luminescence properties, fluorescence decay, and Tm3+→Dy3+ energy transfer governing emission color tuning (including chromaticity toward white light) in the doped NSSO phosphors
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2019-01-01
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