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High efficient antireflective down-conversion Y2O3:Bi,Yb films with pyramid preferred oriented nano-structure
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10.1063/1.4712461
/content/aip/journal/jap/111/9/10.1063/1.4712461
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/9/10.1063/1.4712461
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Figures

Image of FIG. 1.
FIG. 1.

SEM images of the Y2O3 films under different oxygen pressure (a) 0.2 Pa (b) 1 Pa (c) 3 Pa (d) 5 Pa (e) 10 Pa, and (f) cross-sectional SEM image of the sample at 5 Pa.

Image of FIG. 2.
FIG. 2.

XRD spectra of Y2O3 films under different oxygen pressure.

Image of FIG. 3.
FIG. 3.

Schematic diagrams of the crystallographic surface morphology of the preferentially (a) (222) and (b) (400) oriented films.

Image of FIG. 4.
FIG. 4.

Reflectance spectra of Si substrate and Y2O3 films under different oxygen pressure.

Image of FIG. 5.
FIG. 5.

(a) Excitation spectra of Y2O3:Bi3+, Yb3+ film at 5 Pa monitored at 494 nm and 976 nm; (b) emission spectra of visible-NIR PL spectra of Y2O3:Bi3+, Yb3+ films at 5 Pa upon excitation of Bi3+ at 331 nm. The inset shows the dependences of Bi3+ and Yb3+ emission intensity on the oxygen pressure.

Image of FIG. 6.
FIG. 6.

Schematic energy level diagram of Bi3+ and Yb3+ with transitions in the Y2O3 film phosphors.

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/content/aip/journal/jap/111/9/10.1063/1.4712461
2012-05-08
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High efficient antireflective down-conversion Y2O3:Bi,Yb films with pyramid preferred oriented nano-structure
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/9/10.1063/1.4712461
10.1063/1.4712461
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