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Highly Efficient Multicolor Upconversion Emission in Transparent Colloids of Lanthanide-Doped NaYF4 Nanocrystals.

✍ Scribed by Stephan Heer; Karsten Koempe; Hans-Ulrich Guedel; Markus Haase


Book ID
101972122
Publisher
John Wiley and Sons
Year
2005
Weight
9 KB
Volume
36
Category
Article
ISSN
0931-7597

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## Abstract The frequency upconversion emissions of NaYF~4~ nanocrystals embedded in transparent glass ceramics codoped with Yb^3+^/Er^3+^, prepared by melt quenching and subsequent heating, were investigated. It was found that, compared with that of the sample singly doped with 0.5Er^3+^, the inte