Luminescence property, energy transfer and thermal stability of Sr6Ca4(PO4)6F2:Ce3+, Tb3+, Sm3+ for white light emitting diodes
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DOI: 10.1016/j.ijleo.2019.163424
Abstract: Abstract Series of Sr6Ca4(PO4)6F2:Ce3+, Tb3+, Sm3+ are prepared by a high temperature solid state method. Ce3+, Tb3+ or Sm3+ single-doped Sr6Ca4(PO4)6F2 can produce blue, green and red emission under ultraviolet excitation, respectively. However, the emission… read more here.
Keywords: ce3; sr6ca4 po4; tb3 sm3; ce3 tb3 ... See more keywords
Significant enhancement of blue photoluminescence intensity of Dy3+ modified Sr6Ca4(PO4)6F2:Eu2+ phosphors
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DOI: 10.1016/j.jre.2020.06.004
Abstract: Abstract Blue-emitting phosphors Sr6Ca4(PO4)6F2:Eu2+ (SCPF:Eu2+), Sr6Ca4(PO4)6F2:Eu2+,Dy3+ (SCPF:Eu2+,Dy3+) and Sr6Ca4(PO4)6F2:Eu2+,Dy3+,Si4+ (SCPF:Eu2+,Dy3+,Si4+) with apatite structure were successfully synthesized by traditional solid-state reaction under reducing atmosphere. Eu2+, Dy3+ and Si4+ ions occupy the corresponding sites of Sr2+, Ca2+… read more here.
Keywords: 6f2 eu2; dy3; sr6ca4 po4; eu2 dy3 ... See more keywords
Achieving high energy transfer efficiency in Sr6Ca4(PO4)6F2:Ce3+, Mn2+ by regulating the occupation of activator
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DOI: 10.1016/j.materresbull.2019.03.014
Abstract: Abstract Series of color tunable Sr6Ca4(PO4)6F2:Ce3+, Mn2+ were achieved. In the way of energy transfer, the activator Mn2+ should get large energy from sensitizer Ce3+ and show high efficiency. However, with increasing Mn2+ concentration the… read more here.
Keywords: ce3; sr6ca4 po4; mn2; po4 6f2 ... See more keywords
Structure and photoluminescence properties of novel Sr6Ca4(PO4)6F2:Re (Re = Eu2+, Mn2+) phosphors with energy transfer for white-emitting LEDs
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DOI: 10.1039/c7ra06817d
Abstract: A series of Sr6Ca4(PO4)6F2:Eu2+,Mn2+ phosphors were synthesized through traditional solid state reaction. The structural and spectroscopic properties of the series samples along with the energy transfer from Eu2+ to Mn2+ ions have been investigated in… read more here.
Keywords: energy transfer; mn2; sr6ca4 po4; eu2 mn2 ... See more keywords