A General Strategy to Enhance Upconversion luminescence in Rare-Earth-Ion-Doped Oxide Nanocrystals
Journal Title: American Journal of Engineering and Applied Sciences - Year 2016, Vol 9, Issue 1
Abstract
A General Strategy to Enhance Upconversion luminescence in Rare-Earth-Ion-Doped Oxide Nanocrystals Guanying Chen and Lei Xu DOI : 10.3844/ajeassp.2016.79.83 American Journal of Engineering and Applied Sciences Volume 9, Issue 1 Pages 79-83 Abstract We report a general strategy to enhance upconversion luminescence from rare-earth-doped oxide nanocrystals through tailoring the local crystal filed around rare earth ions. We show that upconversion luminescence from oxide nanocrystals of various host lattice (Y2O3, Gd2O3 and ZnO) and of diverse rare-earth-ions (such as Er3+, Yb3+/Er3+, Yb3+/Ho3+ and Yb3+/Tm3+) was enhanced by orders of magnitude through an introduction of non-luminescent Li+ ions into the lattice. These oxide nanocrsytals with tailored upconversion luminescence are able to evoke higher photoluminescence from organic dye molecules, posing their potential use in photodynamic therapy of deep tumors. Copyright © 2016 Guanying Chen and Lei Xu. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. http://thescipub.com/abstract/10.3844/ajeassp.2016.79.83
Authors and Affiliations
Guanying Chen, Lei Xu
Keywords
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- EP ID EP203987
- DOI 10.3844/ajeassp.2016.79.83
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