Journal
OPTICS EXPRESS
Volume 18, Issue 26, Pages 27257-27262Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.027257
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Funding
- National Natural Science Foundation of China [10904131]
- Foundation of Jinhua Science and Technology Bureau [2008-1-151]
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The novel Ba2Gd2Si4O13: Ce3+, Tb3+ phosphors were systemically investigated by fluorescent method for the first time. Through an efficient energy transfer process, the obtained phosphors exhibit both a blue emission of Ce3+ and a yellowish green emission of Tb3+ with considerable intensity under near-ultraviolet excitation (300-370 nm). Tuning of the content of Tb3+ can generate the varied hues from blue to white and eventually to yellowish green. The quantum efficiency of the white phosphor Ba-2(Gd0.88Ce0.02Tb0.1)(2)Si4O13 is 82.3% of commercial ZnS:Ag+,Cl(-)phosphor. Our results demonstrate that the potential application of these phosphors in solid-state lighting and (or) other areas. (C) 2010 Optical Society of America
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