Issue 41, 2005
From the journal:

Journal of Materials Chemistry

Colloidal LaF3:Yb,Er, LaF3:Yb,Ho and LaF3:Yb,Tm nanocrystals with multicolor upconversion fluorescence

Guang-Shun Yi*a  and  Gan-Moog Chowab  

* Corresponding authors

a Molecular Engineering of Biological and Chemical Systems, Singapore-Massachusetts Institute of Technology, National University of Singapore, Singapore 119260, Republic of Singapore
E-mail: smaygs@nus.edu.sg
Fax: +65 6874 2081
Tel: +65 6874 1266

b Department of Materials Science & Engineering, National University of Singapore, Singapore 119260, Republic of Singapore
E-mail: msecgm@nus.edu.sg
Fax: +65 6874 3604
Tel: +65 6874 3325

Abstract

The IR-to-visible upconversion fluorescent nanocrystals, Yb–Er, Yb–Ho and Yb–Tm co-doped LaF3 were chemically synthesized and investigated. The ligand-capped nanocrystals were easily dispersed in organic solutions and subsequently formed a transparent colloidal solution. Under 980 nm IR excitation, green, red and blue emission bands were observed from these colloidal solutions, respectively. Compared with the recently reported colloidal NaYF4:Yb,Er nanocrystals, our nanocrystals produced a fluorescence output which was 5 times higher. These nanocrystals have potential applications as bio-probes and displays.

Graphical abstract: Colloidal LaF3:Yb,Er, LaF3:Yb,Ho and LaF3:Yb,Tm nanocrystals with multicolor upconversion fluorescence

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B508240D
Article type
Paper
Submitted
16 Jun 2005
Accepted
15 Aug 2005
First published
07 Sep 2005

J. Mater. Chem., 2005,15, 4460-4464

Permissions

Request permissions

Colloidal LaF3:Yb,Er, LaF3:Yb,Ho and LaF3:Yb,Tm nanocrystals with multicolor upconversion fluorescence

G. Yi and G. Chow, J. Mater. Chem., 2005, 15, 4460 DOI: 10.1039/B508240D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements