Journal
OPTICAL MATERIALS
Volume 30, Issue 12, Pages 1848-1853Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2007.12.002
Keywords
VUV; PDP; luminescence
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Funding
- NNSF of China
- Hundred Talents Program from the Chinese Academy of Sciences
- Shanghai municipal government
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The VUV excited luminescent properties of Ce3+, Tb3+, Eu3+ and Tm3+ in the matrices of KMGd(PO4)(2) (M = Ca, Sr) were investigated. The bands at about 165 nm and 155 nm in the VUV excitation spectra are attributed to host lattice absorptions of the two matrices. For Ce3+-doped samples, the Ce3+ 5d levels call be identified. As for Tb3+-doped samples, typical 4f-5d absorption bands in the region of 175-250 nm were observed. For Eu3+ and Tm3+-doped samples, the O2--Eu3+ and O-2-Tm3+ CTBs are observed to be at about 229 nm and 177 nm, respectively. From the standpoints of color purity and luminescent efficiency, KCaGd(PO4)(2):Tb3+ is an attractive candidate of green light PDP phosphor. (c) 2008 Elsevier B.V. All rights reserved.
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