Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping

Feng Wang, Yu Han, Chin Seong Lim, Yunhao Lu, Juan Wang, Jun Xu, Hongyu Chen, Chun Zhang, Minghui Hong and Xiaogang Liu ()
Additional contact information
Feng Wang: National University of Singapore
Yu Han: Membrane Research Centre, King Abdullah University of Science and Technology
Chin Seong Lim: Data Storage Institute, A*STAR, 117608, Singapore
Yunhao Lu: National University of Singapore
Juan Wang: National University of Singapore
Jun Xu: Nanyang Technological University
Hongyu Chen: Nanyang Technological University
Chun Zhang: National University of Singapore
Minghui Hong: Data Storage Institute, A*STAR, 117608, Singapore
Xiaogang Liu: National University of Singapore

Nature, 2010, vol. 463, issue 7284, 1061-1065

Abstract: A shining example of doping Many technological materials are intentionally 'doped' by the introduction of trace amounts of foreign elements to impart new and useful properties — a classic example is the doping of semiconductors. Feng Wang et al. describe a system in which lanthanide doping can be used to control the growth of NaYF4 nanocrystals, making it possible to simultaneously tune the size, crystallographic phase and optical properties of the resulting materials. These findings increase our understanding of doping-induced structural transformations, and provide a straightforward route for the controlled synthesis of luminescent nanocrystals for many applications.

Date: 2010
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DOI: 10.1038/nature08777

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