DocumentCode :
2309565
Title :
Blue and red upconverted emission from fluoride crystal nanoparticles
Author :
Toncelli, Alessandra ; Ahmadi, Banafshe
Author_Institution :
Dipt. di Fis., Univ. di Pisa, Pontecorvo, Italy
fYear :
2011
fDate :
8-10 June 2011
Firstpage :
1
Lastpage :
3
Abstract :
Yb,Tm:BaY2F8 nanocrystals have been prepared and a complete spectroscopic characterization is given. After infrared pumping at 970nm we observed strong upconverted emission in the blue and red spectral regions together with infrared emissions. The lifetimes of the observed levels are in agreement with similar results in bulk crystal and no evidence of additional loss processes in the nanocrystals with respect to the bulk material is found.
Keywords :
barium compounds; biomedical materials; nanobiotechnology; nanoparticles; photoluminescence; radiative lifetimes; spectrochemical analysis; thulium; ytterbium; yttrium compounds; BaY2F8:Yb,Tm; blue upconverted emission; fluoride crystal nanoparticles; infrared emission; infrared pumping; nanocrystals; red upconverted emission; spectroscopic characterization; wavelength 970 nm; Biomedical optical imaging; Crystals; X-ray scattering;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
BioPhotonics, 2011 International Workshop on
Conference_Location :
Parma
Print_ISBN :
978-1-4244-9836-9
Electronic_ISBN :
978-1-4244-9835-2
Type :
conf
DOI :
10.1109/IWBP.2011.5954826
Filename :
5954826
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2309565
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