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

✍ Scribed by S. Heer; K. Kömpe; H.-U. Güdel; M. Haase

Book ID: 101412243
Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 312 KB
Volume: 16
Category: Article
ISSN: 0935-9648
DOI: 10.1002/adma.200400772

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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