Search

Your search keyword '"Qu, Shixian"' showing total 17 results
Start Over Author "Qu, Shixian"
17 results on '"Qu, Shixian"'

17. Local-field effect on the fluorescence relaxation of Tm3+:LaF3 nanocrystals immersed in liquid medium.

Author

He E, Zheng H, Zhang X, and Qu S

Subjects
Benzene chemistry, Carbon Disulfide chemistry, Ethanol chemistry, Glycerol chemistry, Luminescent Measurements, Particle Size, Surface Properties, Water chemistry, Fluorescence, Fluorides chemistry, Lanthanum chemistry, Nanostructures chemistry, Thulium chemistry
Abstract

Tm(3+):LaF(3) nanocrystals were synthesized with hydrothermal technique. Local-field effect on the radiative relaxation rate was studied in the system of Tm(3+):LaF(3) nanocrystals immersed in several liquid media. The fluorescence lifetime was measured. It was found that the fluorescence decay presented the characteristics of second-order exponential decay, for which the contribution from the ions inside the nanocrystal and ions at the interface of the nanocrystal were distinguished. Investigating the experimental results with proposed models, we found that the surface effect had to be eliminated. For rare earth doped LaF(3) nanocrystals, real-cavity model well explains the influence of surrounding medium on the fluorescence relaxation rate., (Copyright (c) 2009 John Wiley & Sons, Ltd.)

Published
2010
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results