Applied Physics B

, Volume 99, Issue 1–2, pp 279–284 | Cite as

Photoluminescence properties of blue-emitting Li4SrCa(SiO4)2:Eu2+ phosphor for solid-state lighting

  • X. M. Zhang
  • W. L. Li
  • L. Shi
  • X. B. Qiao
  • H. J. Seo
Article

Abstract

Blue-emitting Li4SrCa(SiO4)2:Eu2+ phosphors have been synthesized by solid-state reaction. The photoluminescence (PL) excitation spectrum shows broad-band absorption and matches well with the emission of a near-UV (n-UV) chip. The PL emission spectrum exhibits a broad-band emission peaking at 430 nm, which is the characteristic emission of the f–d transition of the Eu2+ ion. The diffuse reflection spectra, temperature-dependent emission spectra, fluorescence decay, and mechanism of concentration quenching are also studied in detail. Li4SrCa(SiO4)2:Eu2+ is a candidate blue phosphor for n-UV excited solid-state lighting.

PACS

78.55.-m 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • X. M. Zhang
    • 1
  • W. L. Li
    • 1
  • L. Shi
    • 2
  • X. B. Qiao
    • 2
  • H. J. Seo
    • 2
  1. 1.School of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangshaChina
  2. 2.Department of PhysicsPukyong National UniversityBusanRepublic of Korea

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