Record number :
Title of article :
Photoluminescence properties of Ca9Lu(PO4)7:Ce3+, Mn2+ prepared by conventional solid-state reaction
Author/Authors :
Chengchun Zhao، نويسنده , , Xin Yin، نويسنده , , Yaoming Wang، نويسنده , , Fuqiang Huang، نويسنده , , Yin Hang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
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Abstract :
A new red-emitting phosphor Ca9Lu(PO4)7:Ce3+, Mn2+ has been synthesized by solid-state reaction, and its luminescence properties have been investigated. The broad red emission peaked at 645 nm of Mn2+ is greatly enhanced by the sensitizer Ce3+ due to efficient energy transfer from Ce3+ to Mn2+. The energy transfer was demonstrated to belong to a resonant type via a dipole–quadrupole mechanism. The critical distance for Ce3+→Mn2+ energy transfer was calculated to be 15.04 Å by concentration quenching method. Preliminary results indicate that the phosphor might be a promising red phosphor for UV-based white LEDs.
Keywords :
Light-emitting diode , Optical material , Photoluminescence
Journal title :
Journal of Luminescence
Journal title :
Journal of Luminescence
Serial Year :
Link To Document :