Jump to main content
Jump to site search

Issue 20, 2018
Previous Article Next Article

Codoped Tb3+ and Mn2+ induced tunable emission and energy transfer in Ca19Zn2(PO4)14:Ce3+,Tb3+,Mn2+

Author affiliations

Abstract

To explore a new phosphor, Ca19Zn2(PO4)14:Ce3+,Tb3+ and Ca19Zn2(PO4)14:Ce3+,Mn2+ phosphors are successfully synthesized with the objective of application in ultraviolet-based light-emitting diodes. X-ray diffraction (XRD), photoluminescence (PL) spectra, and lifetimes were used to characterize the samples. Under UV excitation, the energy transfer from the Ce3+ to Tb3+ ions in the Ca19Zn2(PO4)14 host occurred mainly via a dipole–quadrupole mechanism, and the critical distances of the ion pairs (RC) were calculated by the spectral overlap method. A bright red light emission was observed in the Ce3+ and Mn2+ codoped samples via the energy transfer from the sensitizer Ce3+ to Mn2+ ions. With an appropriate ratio of the active ion concentrations, the Ce3+, Tb3+ and Ce3+,Mn2+ codoped Ca19Zn2(PO4)14 phosphors can generate light from the blue to green and blue to orange regions, respectively. The emission colors of the phosphors were also clarified by CIE coordinates briefly.

Graphical abstract: Codoped Tb3+ and Mn2+ induced tunable emission and energy transfer in Ca19Zn2(PO4)14:Ce3+,Tb3+,Mn2+

Back to tab navigation

Publication details

The article was received on 31 Jul 2018, accepted on 04 Sep 2018 and first published on 05 Sep 2018


Article type: Paper
DOI: 10.1039/C8NJ03839B
Citation: New J. Chem., 2018,42, 16729-16734
  •   Request permissions

    Codoped Tb3+ and Mn2+ induced tunable emission and energy transfer in Ca19Zn2(PO4)14:Ce3+,Tb3+,Mn2+

    C. Liang, Y. Fu, X. Teng, K. Liu, H. You and J. He, New J. Chem., 2018, 42, 16729
    DOI: 10.1039/C8NJ03839B

Search articles by author

Spotlight

Advertisements