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Sensitized Ce3+ and Gd3+ Ultraviolet Emissions by Tm3+ in Colloidal LiYF4 Nanocrystals

✍ Scribed by Venkataramanan Mahalingam; Rafik Naccache; Fiorenzo Vetrone; John A. Capobianco


Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
243 KB
Volume
15
Category
Article
ISSN
0947-6539

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A high resolution luminescence study of NaLaF 4 : 1%Pr 3+ , 5%Yb 3+ and NaLaF 4 : 1%Ce 3+ , 5%Yb 3+ in the UV to NIR spectral range using a InGaAs detector and a fourier transform interferometer is reported. Although the Pr 3+ ( 3 P 0 ? 1 G 4 ), Yb 3+ ( 2 F 7/2 ? 2 F 5/2 ) energy transfer step takes