Monodisperse upconversion GdF3:Yb, Er rhombi by microwave-assisted synthesis
1 Institute Materials for Electronics and Energy Technology (I-MEET), Friedrich Alexander Universität Erlangen-Nürnberg, Marternsstraße 7, 91058, Erlangen, Germany
2 Ian Wark Research Institute, University of South Australia, Mawson Lakes, South Australia 5095, Australia
Nanoscale Research Letters 2011, 6:267 doi:10.1186/1556-276X-6-267Published: 29 March 2011
We have synthesized a variety of monodisperse colloidal GdF3:Yb, Er upconversion nanocrystals with different shape, size, and dopants by microwave-assisted synthesis. Typical upconversion emission from Er3+ was observed. In addition to highly monodisperse spherical particles, we were able to prepare monodispersed rhombic-shaped slices that showed a tendency for self-assembly into stacks.