Jump to main content
Jump to site search

Issue 37, 2014
Previous Article Next Article

Crystal structure and luminescence property of a novel blue-emitting Cs2xCa2xGd2(1−x)(PO4)2:Eu2+ (x = 0.36) phosphor

Author affiliations

Abstract

A novel blue-emitting double-phosphate phosphor Cs0.72Ca0.72Gd1.28(PO4)2:Eu2+ was synthesized by the sol–gel method, and the structure and luminescence properties were investigated in detail. The crystal structure and chemical composition of Cs0.72Ca0.72Gd1.28(PO4)2 matrix was analyzed and determined based on Rietveld refinements and phase and chemical composition analysis. The composition-optimized Cs0.72Ca0.72Gd1.28(PO4)2:Eu2+ exhibited strong blue light, peaking at 462 nm upon excitation at 365 nm with the CIE coordinates of (0.139, 0.091). The quenching concentration of Eu2+ in the Cs0.72Ca0.72Gd1.28(PO4)2 phase was about 0.01 and attributed to the dipole–quadrupole interaction. The thermally stable luminescence properties, fluorescence decay curves and diffuse reflectance spectra of Cs0.72Ca0.72Gd1.28(PO4)2:Eu2+ phosphors are also discussed, all of which indicate that the Cs0.72Ca0.72Gd1.28(PO4)2:Eu2+ phosphor is a promising phosphor for application in white-light UV LEDs.

Graphical abstract: Crystal structure and luminescence property of a novel blue-emitting Cs2xCa2xGd2(1−x)(PO4)2:Eu2+ (x = 0.36) phosphor

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 28 May 2014, accepted on 28 Jul 2014, published on 28 Jul 2014 and first published online on 28 Jul 2014


Article type: Paper
DOI: 10.1039/C4DT01578A
Citation: Dalton Trans., 2014,43, 14092-14098
  •   Request permissions

    Crystal structure and luminescence property of a novel blue-emitting Cs2xCa2xGd2(1−x)(PO4)2:Eu2+ (x = 0.36) phosphor

    K. Geng, Z. Xia and M. S. Molokeev, Dalton Trans., 2014, 43, 14092
    DOI: 10.1039/C4DT01578A

Search articles by author