Direct cation exchange of surface ligand capped upconversion nanocrystals to produce strong luminescence

Authors

Ming Guan, University of Technology, Sydney, China University of Geosciences
Zhiguang Zhou, University of Technology, Sydney
Lefu Mei, China University of Geosciences
Hong Zheng, China University of Geosciences
Wei Ren, University of Technology, Sydney
Li Wang, University of WollongongFollow
Yi Du, University of WollongongFollow
Dayong Jin, University of Technology, SydneyFollow
Jiajia Zhou, University of Technology, Sydney

RIS ID

130005

Publication Details

Guan, M., Zhou, Z., Mei, L., Zheng, H., Ren, W., Wang, L., Du, Y., Jin, D. & Zhou, J. (2018). Direct cation exchange of surface ligand capped upconversion nanocrystals to produce strong luminescence. Chemical Communications, 54 (69), 9587-9590.

Abstract

We develop a facile and rapid cation exchange method for upconversion nanocrystals (UCNCs) without removing surface ligands. It avoids the tedious pretreatment of as-synthesized UCNCs, and the luminescent intensities of nanocrystals after Tb3+exchange using the new method are much stronger than those of the nanocrystals obtained using conventional cation exchange in water.