Format

Send to

Choose Destination
See comment in PubMed Commons below
Opt Express. 2009 May 25;17(11):9089-98.

Tri-color upconversion luminescence of Rare earth doped BaTiO3 nanocrystals and lowered color separation.

Author information

  • 1Institute of Modern Physics, Xiangtan University, Xiangtan 411105, China.

Abstract

Upconversion tri-color luminescence of Er(3+)/Tm(3+)/Yb(3+) doped BaTiO3 nanocrystals is observed under the excitation of a 980 nm laser diode. Especially, Er(3+) emission has a considerable contribution to the blue portion of the UC spectra, different from the ever-reported results, in which blue emission originates only from Tm(3+). This realization is beneficial to lower the color separation between blue and green (or red) emissions, in fluorescent labeling. The analysis of excitation power dependence and decay time revealed that blue emission of Er(3+) ion is induced by a dual energy transfer upconversion, while Tm(3+) plays a role of both emitter and activator.

PMID:
19466159
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Support Center