Journal
NANOSCALE
Volume 3, Issue 3, Pages 1046-1052Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0nr00676a
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Funding
- spanish Ministerio de Ciencia e Innovacion (MICINN) [MAT2009-14102, MAT2008-02166]
- Comunidad de Madrid [S2009/TIC-1476]
- Junta de Andalucia [FQM3579]
- Spanish Research Council (CSIC) [PIE-200960I127]
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Monodisperse YF3:Tm3+/Yb3+ nanocrystals have been synthesized to explore the visible up-converting properties under near infrared (975 nm) excitation. It has been found that the nanoparticles exhibit intense red up-converted emissions, in addition to the characteristic UV and blue Tm3+-bands. It is demonstrated that, by carefully selecting Tm3+ and Yb3+ contents, the relative intensity of the different emissions can be changed producing an overall emission colour that can be tuned from blue to magenta.
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