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Optical spectroscopy and confocal fluorescence imaging of upconverting -doped nanocrystals
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10.1063/1.2392284
/content/aip/journal/apl/90/9/10.1063/1.2392284
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/9/10.1063/1.2392284
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Figures

Image of FIG. 1.
FIG. 1.

(a) Typical TEM image for Er-doped heat-treated at 800° C for 24 h. (b) Confocal image of green and red up-conversion florescence from individual Er-doped nanocrystals.

Image of FIG. 2.
FIG. 2.

Up-conversion emission spectrum of -doped produced with excitation.

Image of FIG. 3.
FIG. 3.

Energy level diagram of and the possible excitation and de-excitation pathways leading to the observed up-conversion bands.

Image of FIG. 4.
FIG. 4.

Quadratic dependence of the emission intensity on concentration for nanocrystals.

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/content/aip/journal/apl/90/9/10.1063/1.2392284
2007-03-02
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical spectroscopy and confocal fluorescence imaging of upconverting Er3+-doped CaF2 nanocrystals
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/9/10.1063/1.2392284
10.1063/1.2392284
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