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Article
Photoluminescence Properties of CaO:Ce3+, Na+, a Non-Garnet Yellow-Emitting Phosphor Under Blue Light Excitation
Materials Letters
  • Zhendong Hao, Chinese Academy of Sciences
  • Xia Zhang, Chinese Academy of Sciences
  • Xiao-Jun Wang, Georgia Southern University
  • Jiahua Zhang, Chinese Academy of Sciences
Document Type
Article
Publication Date
2-1-2012
DOI
10.1016/j.matlet.2011.10.102
Disciplines
Abstract
A yellow-emitting phosphor, CaO:Ce3 +,Na+ is synthesized by solid-state reaction. The photoluminescence spectra, fluorescence decay curves and the temperature-dependent luminescence are investigated. The results show that CaO:Ce3 +,Na+ can be excited by blue light, which matched well with the emission wavelengths of blue InGaN LED chips. When excited at 474 nm, in the range of 480–700 nm, CaO:Ce3 +,Na+ exhibits a strong yellow emission band located around 555 nm. The temperature-dependent luminescence behavior of this phosphor indicates that CaO:Ce3 +,Na+ exhibits better thermal stability than commercial YAG:Ce3 +.
Citation Information
Zhendong Hao, Xia Zhang, Xiao-Jun Wang and Jiahua Zhang. "Photoluminescence Properties of CaO:Ce3+, Na+, a Non-Garnet Yellow-Emitting Phosphor Under Blue Light Excitation" Materials Letters Vol. 68 (2012) p. 443 - 445
Available at: http://works.bepress.com/xiao-jun_wang/37/