Paper Title:
Luminescent Properties of Sr2B5O9Cl Phosphor Doped with Eu
  Abstract

Sr2B5O9Cl:Eu phosphor with high efficient luminescent material was synthesized by solid-state reaction method in air. The result of X-ray diffraction showed that the pure Sr2B5O9Cl phase forms at 900°C. The emission spectrum of Sr2B5O9Cl:Eu under 254nm excitation contained two parts. One part was constituted by a strong peak located at 417nm due to the d→f transition of Eu2+ ion, and the other part contained five weak peaks between 580-660nm due to the 5D0→7FJ(J=1,2,3) of Eu3+ ion. The infrared spectrum revealed that both BO3 unites and BO4 unites coexisted in the resultant product. The Eu2+ was surrounded and protected from being oxidized by the BO4 unites. Both red and blue visible lights were observed under ultraviolet excitation as a result of the coexistence of Eu2+ ion and Eu3+ ion.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
625-628
DOI
10.4028/www.scientific.net/KEM.336-338.625
Citation
N. Su, Z. L. Tang, Z. T. Zhang, "Luminescent Properties of Sr2B5O9Cl Phosphor Doped with Eu", Key Engineering Materials, Vols. 336-338, pp. 625-628, 2007
Online since
April 2007
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$32.00
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