Preferential suppression of high-energy upconverted emissions of Tm3+ by Dy3+ ions in Tm3+/Dy3+/Yb3+-doped LiYF4 colloidal nanocrystals |
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| Authors: | Mahalingam Venkataramanan Naccache Rafik Vetrone Fiorenzo Capobianco John A |
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| Institution: | Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur 741 252, India. |
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| Abstract: | The intensity of high energy UV and blue upconverted emissions of Tm(3+) ions in Tm(3+)/Yb(3+) co-doped LiYF(4) colloidal nanocrystals was selectively reduced compared to the NIR emission at 802 nm. This was achieved by doping a small amount of Dy(3+) ions into the host matrix. |
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