Enhanced emission of NaYF4:Yb,Er/Tm nanoparticles by selective growth of Au and Ag nanoshells

Palanisamy Kannan; Ferhan Abdul Rahim; Xue Teng; Rui Chen; Handong Sun; Ling Huang; Dong-Hwan Kim

doi:10.1039/C3RA22130J

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Enhanced emission of NaYF₄:Yb,Er/Tm nanoparticles by selective growth of Au and Ag nanoshells†

Palanisamy Kannan,^a Ferhan Abdul Rahim,^a Xue Teng,^a Rui Chen,^b Handong Sun,^b Ling Huang^a and Dong-Hwan Kim*^a

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* Corresponding authors

^a School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore
E-mail: dhkim@ntu.edu.sg
Fax: +65 6791 1761
Tel: +65 6316 8825

^b Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore

Abstract

We report a novel, simple strategy to efficiently enhance the fluorescence of metal-coated up-conversion nanoparticles (UCNPs), NaYF₄:Yb,Er/Tm. The UCNPs are functionalized with a polyamidoamine generation 1 (PAMAM G1) dendrimer, followed by a continuous growth of gold (Au) or silver (Ag) nanoshells to selectively enhance the up-converted green, violet and blue emissions (>20 fold).

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Article information

DOI: https://doi.org/10.1039/C3RA22130J
Article type: Communication
Submitted: 11 Sep 2012
Accepted: 28 Mar 2013
First published: 02 Apr 2013

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RSC Adv., 2013,3, 7718-7721

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Enhanced emission of NaYF₄:Yb,Er/Tm nanoparticles by selective growth of Au and Ag nanoshells

P. Kannan, F. A. Rahim, X. Teng, R. Chen, H. Sun, L. Huang and D. Kim, RSC Adv., 2013, 3, 7718 DOI: 10.1039/C3RA22130J

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