| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9582407 | Chemical Physics Letters | 2005 | 5 Pages |
Abstract
High quality nanocrystals of hexagonal β-NaGdF4 codoped with Yb3+ and Er3+ were synthesized by controlled precipitation in high boiling organic solvents and characterized by XRD and TEM. The particles of roughly spherical shape and a size of about 30 nm can be transparently dissolved in DMSO. Visible by eye green and red upconversion emission is observed upon near-infrared excitation at 10 233 cmâ1 (977 nm) with a laser power density of 2 kW cmâ2.
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Physical and Theoretical Chemistry
Authors
Annina Aebischer, Stephan Heer, Daniel Biner, Karl Krämer, Markus Haase, Hans U. Güdel,