Jump to main content
Jump to site search

Issue 29, 2015
Previous Article Next Article

Active-core/active-shell nanostructured design: an effective strategy to enhance Nd3+/Yb3+ cascade sensitized upconversion luminescence in lanthanide-doped nanoparticles

Author affiliations

Abstract

In recent years, intensive research efforts around the world have been devoted to lanthanide-doped upconversion nanoparticles because of their promising application in biological imaging. However, the overheating issue caused upon 980 nm laser irradiation in conventional Yb3+-based nanoparticles is needed to be addressed, and thus Nd3+/Yb3+-based upconversion nanoparticles with 808 nm excitation are investigated as promising alternatives because they can significantly decrease the optical absorption of water. Due to the cascade sensitization process, Nd3+/Yb3+-based upconversion nanoparticles, however, always suffer from the intrinsic low luminescence efficiency. To solve this problem, here we proposed the active-core/active-shell nanostructured design as an effective strategy for upconversion improvement of Nd3+/Yb3+-based upconversion nanoparticles. We found that after growing an optimized active-shell containing both Nd3+ and Yb3+ ions, a maximum 522-fold enhancement in upconversion luminescence was realized upon excitation at 808 nm. These findings would be of great importance to the community developing high-performance upconversion nanoparticles for bioimaging applications.

Graphical abstract: Active-core/active-shell nanostructured design: an effective strategy to enhance Nd3+/Yb3+ cascade sensitized upconversion luminescence in lanthanide-doped nanoparticles

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 May 2015, accepted on 28 Jun 2015 and first published on 01 Jul 2015


Article type: Paper
DOI: 10.1039/C5TC01438G
J. Mater. Chem. C, 2015,3, 7652-7657

  •   Request permissions

    Active-core/active-shell nanostructured design: an effective strategy to enhance Nd3+/Yb3+ cascade sensitized upconversion luminescence in lanthanide-doped nanoparticles

    X. Huang and J. Lin, J. Mater. Chem. C, 2015, 3, 7652
    DOI: 10.1039/C5TC01438G

Search articles by author

Spotlight

Advertisements