Photoluminescence Properties of CaO:Ce³⁺, Na⁺, a Non-Garnet Yellow-Emitting Phosphor Under Blue Light Excitation

Authors

Zhendong Hao, Chinese Academy of SciencesFollow
Xia Zhang, Chinese Academy of SciencesFollow
Xiao-Jun Wang, Georgia Southern UniversityFollow
Jiahua Zhang, Chinese Academy of SciencesFollow

Document Type

Article

Publication Date

2-1-2012

Publication Title

Materials Letters

DOI

10.1016/j.matlet.2011.10.102

Abstract

A yellow-emitting phosphor, CaO:Ce^{3 +},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:Ce^{3 +},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:Ce^{3 +},Na⁺ exhibits a strong yellow emission band located around 555 nm. The temperature-dependent luminescence behavior of this phosphor indicates that CaO:Ce^{3 +},Na⁺ exhibits better thermal stability than commercial YAG:Ce^{3 +}.

Recommended Citation

Hao, Zhendong, Xia Zhang, Xiao-Jun Wang, Jiahua Zhang. 2012. "Photoluminescence Properties of CaO:Ce³⁺, Na⁺, a Non-Garnet Yellow-Emitting Phosphor Under Blue Light Excitation." Materials Letters, 68: 443-445: Elsevier. doi: 10.1016/j.matlet.2011.10.102
https://digitalcommons.georgiasouthern.edu/physics-facpubs/50

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