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Open Access Nano Express

Monodisperse upconversion GdF3:Yb, Er rhombi by microwave-assisted synthesis

Haiqiao Wang1* and Thomas Nann2

Author Affiliations

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

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Nanoscale Research Letters 2011, 6:267  doi:10.1186/1556-276X-6-267

Published: 29 March 2011

Abstract

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.