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Blueshift in sulfur treated GaAsP/AlGaAs near surface quantum well
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10.1116/1.3679394
/content/avs/journal/jvsta/30/2/10.1116/1.3679394
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/30/2/10.1116/1.3679394
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram depicting the sample structure and its band diagram showing the electron wave function penetrating to vacuum.

Image of FIG. 2.
FIG. 2.

Photoreflectance spectra of the reference and the sulfur treated NSQW samples as a function of the sulfur treatment time.

Image of FIG. 3.
FIG. 3.

e1-lh1 transition energy showing the blueshift with increase in the passivation treatment duration.

Image of FIG. 4.
FIG. 4.

Ga 2p core level spectra of the reference and Na2S-treated NSQW samples. Inset: Valence band spectra of the corresponding samples showing the band bending.

Image of FIG. 5.
FIG. 5.

XPS spectra showing the Al 2p core levels of the as-grown NSQW and the same after 30 min of sulfur-treatment.

Image of FIG. 6.
FIG. 6.

Variation of the transition energies with the barrier thickness.

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/content/avs/journal/jvsta/30/2/10.1116/1.3679394
2012-02-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Blueshift in sulfur treated GaAsP/AlGaAs near surface quantum well
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/30/2/10.1116/1.3679394
10.1116/1.3679394
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