期刊
DALTON TRANSACTIONS
卷 44, 期 39, 页码 17286-17292出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5dt02751a
关键词
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资金
- National Natural Science Foundation of China [21371165, 51372242, 21221061, 91122030, 21210001]
- Science and Technology Cooperation Special Project of Hong Kong, Macao and Taiwan [2014DFT10310]
- National Key Basic Research Program of China [2014CB643802]
- Jilin Province Youth Foundation [20130522122JH]
Cubic KLu3F10 nanocrystals have been fabricated by doping Mn2+ ions via a liquid-solid solution (LSS) hydrothermal method. With an increase in the Mn2+ level, a phase transformation from orthorhombic KLu2F7 to cubic KLu3F10 associated with evolution of the particle morphologies and sizes is evident. The phase transformation mechanism based on doping with Mn2+ ions was studied via a series of time-controlled experiments and the enhancement of the intensity of upconversion luminescence (UCL) via doping with Mn2+ ions is discussed in detail. In addition, under 980 nm excitation, the UCL properties of Er3+/Tm3+/Ho3+-doped KLu3F10:Yb3+ upconversion nanoparticles (UCNPs) have been investigated and a possible UCL mechanism has been discussed. It has been demonstrated that cubic KLu3F10 is an excellent host for upconversion luminescence.
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