Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (10): 1186-1194.DOI: 10.11944/j.issn.1000-0518.2017.10.160495

• Orginal Article • Previous Articles     Next Articles

Synthesis and Luminescence Properties of Ba3Y(PO4)3:Dy3+,Eu3+ Single Phase White-emitting Phosphor

LI Shuailong,LIU Xiaoming(),TANG Xinghua,FENG Jingchun,XIE Weijie   

  1. Environmental and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China
  • Received:2016-12-05 Accepted:2017-03-29 Published:2017-09-29 Online:2017-09-29
  • Contact: LIU Xiaoming
  • Supported by:
    Supported by the Natural Science Foundation of the Jiangxi Province of China(No.20152ACB20011), the Postgraduate Innovation Foundation of Nanchang Hangkong University(No.YC2015009)

Abstract:

A series of Dy3+ and/or Eu3+ doped Ba3Y(PO4)3 phosphors was prepared via a traditional high temperature solid state reaction to investigate how the luminescent properties of Dy3+ doped Ba3Y(PO4)3 phosphor can be tuned by co-doping Eu3+ ions into the host lattice. X-ray diffraction(XRD), photoluminescence and fluorescence lifetime were used to characterize the as-prepared samples. The results show that all the samples have Ba3Y(PO4)3 eulytite cubic structure. Under the excitation of near-UV light, the Ba3Y(PO4)3:Dy3+ phosphor shows cool-white emission and the Ba3Y(PO4)3:Eu3+ phosphor presents an orange-red emission. For Ba3Y(PO4)3:Dy3+,Eu3+ phosphor, warm-white emission with high color rendering index and appropriate correlated color temperature has been obtained by combining red emission of Eu3+with cool-white emission of Dy3+. The luminescence mechanism of Ba3Y(PO4)3:Dy3+,Eu3+ phosphor has been tentatively proposed and the prepared Ba3Y(PO4)3:Dy3+,Eu3+ phosphor has potential application in white-light-emitting-diodes(WLEDs) filed.

Key words: Ba3Y(PO4)3:Dy3+, Eu3+, white-emitting phosphor, energy transfer