Physics & Astronomy: Faculty Publications
Dual Color Emissions of Sr2-xCaxP2O7:Eu2+, Mn2+ for Near UV Excitation
Document Type
Article
Publication Date
2012
Publication Title
Journal of the Electrochemical Society
DOI
10.1149/2.054203jes
Abstract
Eu2+, Mn2+ singly and co-doped Sr2−xCaxP2O7 phosphors (x = 0–2) are prepared by solid state reaction. Crystal phase evolution is studied as a function of Ca2+ content based on the experimental measurements of X-ray diffraction, photoluminescence and fluorescence decay. The x dependent emission band shapes and peak positions for both Eu2+ and Mn2+ are discussed in terms of the crystal phase types and crystal field strength in relation with Ca2+ substitution for Sr2+. An effective energy transfer from blue emitting Eu2+ to orange emitting Mn2+ is observed in all compositions beneficial to dual color emissions. The widest emission band and intense orange emission are found in Sr1.25Ca0.75P2O7: Eu2+, Mn2+, exhibiting promising use in white light generation using near UV LEDs.
Recommended Citation
Yu, Jinying, Zhendong Hao, Xia Zhang, Yongshi Luo, Xiao-Jun Wang, Jiahua Zhang.
2012.
"Dual Color Emissions of Sr2-xCaxP2O7:Eu2+, Mn2+ for Near UV Excitation."
Journal of the Electrochemical Society, 159 (3): 56-61: IOP Publishing.
doi: 10.1149/2.054203jes
https://digitalcommons.georgiasouthern.edu/physics-facpubs/49
Copyright
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