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Concentration-dependent near-infrared quantum cutting in nanophosphors
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10.1063/1.2472195
/content/aip/journal/apl/90/6/10.1063/1.2472195
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/6/10.1063/1.2472195
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

XRD pattern of nanophosphors. Inset shows typical SEM image of the nanophosphors.

Image of FIG. 2.
FIG. 2.

(Color online) (a) PLE spectra of the emission (, solid line) and the : emission (, dotted line) and (b) visible-NIR PL spectrum upon excitation of (: ) of .

Image of FIG. 3.
FIG. 3.

(Color online) Dependence of the green- and NIR-emission intensities on the doping concentration in nanophosphors. Inset shows schematic energy levels of the nanophosphors showing possible mechanisms for a NIR QC under excitation of visible with .

Image of FIG. 4.
FIG. 4.

(Color online) Decay lifetimes of the luminescence under excitation of . The different fractions of in the samples are indicated in the figure. Inset shows the TE, QE, and decay lifetime as a function of the doping concentration.

Image of FIG. 5.
FIG. 5.

(Color online) Transfer efficiency and decay lifetime as a function of the concentration in . The calculated transfer efficiencies beyond the CQ are also shown (asterisks).

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/content/aip/journal/apl/90/6/10.1063/1.2472195
2007-02-07
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Concentration-dependent near-infrared quantum cutting in GdBO3:Tb3+,Yb3+ nanophosphors
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/6/10.1063/1.2472195
10.1063/1.2472195
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