Emission color variation of Sr3SiO5:Ce3+, Li+ phosphor for near-UV light-emitting diodes by co-doping with Mg2+ and Ba2+

Ping Ping Zhu, Tong Wen Huang, Xiao Jun Wang, Hui Li Li, Zhuo Sun

Research output: Contribution to book or proceedingConference articlepeer-review

2 Scopus citations

Abstract

This paper reports the spectral variation of Sr3SiO5: Ce3+, Li+ phosphor. It was synthesized by the conventional solid state method. The effects of calcining temperature and codoption of Mg2+ and Ba2+ on phase composition, structure, photoluminescence and thermal stability were firstly investigated in detail. Under the near-UV excitation of 415 nm, Sr3SiO5: Ce3+, Li+ emits a bright greenish-yellow color centered at 532nm, which originates from 5d to 4f (2F7/2 and 2F5/2) transition of Ce3+. The PL spectra show the different emission color variation with substituting Sr2+ cations with smaller Mg2+ or larger Ba2+, which makes it be applied as a color-tunable phosphor for LED based on near-UV chip/phosphor technology. Simultaneously, the thermal stability of (Sr,Ba)3SiO5: Ce3+, Li+ phosphor is improved markedly.

Original languageEnglish
Title of host publicationMaterials Design, Processing and Applications
Pages555-558
Number of pages4
DOIs
StatePublished - 2013
Event4th International Conference on Manufacturing Science and Engineering, ICMSE 2013 - Dalian, China
Duration: Mar 30 2013Mar 31 2013

Publication series

NameAdvanced Materials Research
Volume690 693
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Manufacturing Science and Engineering, ICMSE 2013
Country/TerritoryChina
CityDalian
Period03/30/1303/31/13

Keywords

  • Co-doping
  • LED
  • Li
  • Phosphor
  • Solid state method
  • SrSiO: Ce

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