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Issue 27, 2015
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Intense NIR emissions at 0.8 μm, 1.47 μm, and 1.53 μm from colloidal LiYbF4:Ln3+ (Ln = Tm3+ and Er3+) nanocrystals

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Abstract

We report on the synthesis of diamond shaped Ln3+-doped LiYbF4 (Ln = Tm and Er) nanocrystals with flat edges via the thermal decomposition method. Strong near-infrared emissions at 0.8 μm, 1.47 μm and 1.53 μm are observed from colloidal dispersions of Tm3+-doped and Er3+-doped LiYbF4 nanocrystals, respectively, under 0.98 μm diode laser excitation. The NIR emission intensities for Tm3+-doped and Er3+-doped LiYbF4 nanocrystals are comparable with those of the sodium counterpart NaYbF4, suggesting that LiYbF4 is also an excellent host matrix for lanthanide ions to obtain strong NIR emissions in colloidal solutions of LiYbF4 (Tm3+ or Er3+) nanocrystals.

Graphical abstract: Intense NIR emissions at 0.8 μm, 1.47 μm, and 1.53 μm from colloidal LiYbF4:Ln3+ (Ln = Tm3+ and Er3+) nanocrystals

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Supplementary files

Article information


Submitted
21 Feb 2015
Accepted
05 Jun 2015
First published
08 Jun 2015

Phys. Chem. Chem. Phys., 2015,17, 17577-17583
Article type
Communication
Author version available

Intense NIR emissions at 0.8 μm, 1.47 μm, and 1.53 μm from colloidal LiYbF4:Ln3+ (Ln = Tm3+ and Er3+) nanocrystals

S. Sarkar, V. N. K. B. Adusumalli, V. Mahalingam and J. A. Capobianco, Phys. Chem. Chem. Phys., 2015, 17, 17577
DOI: 10.1039/C5CP01083G

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