Issue 3, 2011
From the journal:

Chemical Communications

Highly spectral dependent enhancement of upconversion emission with sputtered gold island films†

Hua Zhang,a   Di Xu,a   Yu Huang*ac  and  Xiangfeng Duan*bc  

* Corresponding authors

a Department of Materials Science and Engineering, University of California, Los Angeles, USA
E-mail: yhuang@seas.ucla.edu

b Department of Chemistry and Biochemistry, University of California, Los Angeles, USA
E-mail: xduan@chem.ucla.edu

c California Nanosystems Institute, University of California, Los Angeles, USA

Abstract

We report a five-fold overall enhancement of upconversion emission in NaYF4 : Yb/Er nanocrystals when coupled with gold island films. Spectroscopic studies show that the enhancement factors are highly dependent on the exact spectral positions and excitation power density, with a largest enhancement factor of more than 12 observed at selected spectral positions, which may be attributed to different upconversion processes involved.

Graphical abstract: Highly spectral dependent enhancement of upconversion emission with sputtered gold island films

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Article information

DOI
https://doi.org/10.1039/C0CC03566A
Article type
Communication
Submitted
30 Aug 2010
Accepted
27 Oct 2010
First published
16 Nov 2010

Chem. Commun., 2011,47, 979-981

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Highly spectral dependent enhancement of upconversion emission with sputtered gold island films

H. Zhang, D. Xu, Y. Huang and X. Duan, Chem. Commun., 2011, 47, 979 DOI: 10.1039/C0CC03566A

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