Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Nov 12;6:8832. doi: 10.1038/ncomms9832

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) Scanning electron microscopy (SEM) image of the as-synthesized Yb³⁺/Tm³⁺-co-doped NaYF₄ nanorods under investigation. The inserted high-resolution SEM image shows hexagonal cross-sections of these nanorods. Scale bar, 2 μm. (b) Comparative emission spectra of the NaYF₄-based nanorods with different dopant compositions when irradiated with α-particles. (c) The plot of the emission ratio of Tm³⁺ and Yb³⁺ (I_Tm/I_Yb) as a function of Yb³⁺ doping concentration, supporting the energy transfer between the two lanthanide ions. (d) Optimization of Yb³⁺ doping concentration for maximal emission output in the visible range. The ratio of I_Vis/I_total represents the percentage of integrated visible emission in the total emission covering the range from 350 to 1,100 nm.