Jump to main content
Jump to site search

Issue 25, 2015
Previous Article Next Article

Single-phased white-light-emitting Ca4(PO4)2O:Ce3+,Eu2+ phosphors based on energy transfer

Author affiliations

Abstract

A novel single-composition Ca4(PO4)2O:Ce3+,Eu2+ phosphor emitting white light was synthesized by conventional solid-state reaction for light-emitting diode applications. X-ray diffraction, photoluminescence spectra, and luminescence decay spectra were used to characterize the samples. Energy transfer from Ce3+ to Eu2+ ions was observed in the co-doped samples, and the transfer mechanism in the Ca4(PO4)2O:Ce3+,Eu2+ phosphors was dipole–dipole interaction. The emission hue of Ca4(PO4)2O:Ce3+,Eu2+ was found to vary from blue (0.165, 0.188) to white (0.332, 0.300) and eventually to orange (0.519, 0.366) by precisely controlling the ratio of Ce3+ to Eu2+. The combination of a 380 nm near-ultraviolet chip with a Ca4(PO4)2O:0.02Ce3+,0.012Eu2+ phosphor produced a diode emitting white light with ultra-wideband emission and a correlated color temperature of 4124 K. Overall, results indicated that the prepared samples may be potentially applied in white-light-emitting diodes.

Graphical abstract: Single-phased white-light-emitting Ca4(PO4)2O:Ce3+,Eu2+ phosphors based on energy transfer

Back to tab navigation

Publication details

The article was received on 13 Mar 2015, accepted on 12 May 2015 and first published on 12 May 2015


Article type: Paper
DOI: 10.1039/C5DT01018G
Author version
available:
Download author version (PDF)
Citation: Dalton Trans., 2015,44, 11399-11407
  •   Request permissions

    Single-phased white-light-emitting Ca4(PO4)2O:Ce3+,Eu2+ phosphors based on energy transfer

    Y. Jia, R. Pang, H. Li, W. Sun, J. Fu, L. Jiang, S. Zhang, Q. Su, C. Li and R. Liu, Dalton Trans., 2015, 44, 11399
    DOI: 10.1039/C5DT01018G

Search articles by author

Spotlight

Advertisements