Journal
RSC ADVANCES
Volume 3, Issue 6, Pages 1683-1686Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra22022a
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Funding
- National Natural Science Foundation of China [10979032, 21001042, 21171052]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-11-0959]
- Postdoctoral Science Foundation of Heilongjiang Province [LBH-Q11009]
- Youth Foundation for Distinguished Young Scholars of Heilongjiang University
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NaYF4:Yb3+/Er3+/Pb2+ nanocrystals were prepared by a hydrothermal method. The simultaneous phase and size control of NaYF4:Yb3+/Er3+ nanocrystals with tunable upconversion luminescence was successfully achieved by tridoping with Pb2+ ions. The intensity ratio of H-2(11/2)/S-4(3/2) -> I-4(15/2) to F-4(9/2) -> I-4(15/2) increased with increasing Pb2+ concentration. The upconversion luminescent properties were also investigated.
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