Abstract
Rare earth (RE) nanocrystals (NCs) exhibit featured fluorescence properties and are widely used in many applications of biomedical labeling, display, sensing, light-emitting devices, etc. Plasmon-enhanced and -manipulated fluorescence of RE NCs usually shows different behaviors compared with organic dye molecules and semiconductor NCs. In this Chapter, we firstly present the enhanced upconversion fluorescence of RE fluoride NCs by the dopant-controlled synthesis. Then the preparation of plasmon/RE core/shell NCs by wet-chemical growth method is introduced. Finally, we demonstrate the plasmon-enhanced upconversion fluorescence of a single RE NC and by plasmonic array nanostructures.
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