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Improved photoluminescence of quantum wells assisted by Sb surfactant and indium-graded intermediate layers
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10.1063/1.2009048
/content/aip/journal/apl/87/6/10.1063/1.2009048
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/6/10.1063/1.2009048
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A schematic plot of a Sb-assisted single-QW structure with indium-graded intermediate layer. The indium-graded intermediate layer is formed by the gradual change of In composition at the interface of QW and barrier.

Image of FIG. 2.
FIG. 2.

RT PL intensity and the spectral FWHM of the simple and Sb-assisted indium-graded single-QW structures as a function of the PL emission wavelength. Solid and open symbols represent the FWHM and the PL peak intensity, respectively. Squares and circles represent the single QWs grown without and with Sb-assisted indium-graded intermediate layer, respectively.

Image of FIG. 3.
FIG. 3.

A comparison of the RT PL spectra for the simple and Sb-assisted indium-graded single QWs.

Image of FIG. 4.
FIG. 4.

Variable temperature spectra for (a) the simple and (b) the Sb-assisted indium-graded single-QW structures.

Image of FIG. 5.
FIG. 5.

The log of the integrated PL intensity plotted as a function of reciprocal temperature for the simple and Sb-assisted indium-graded single QW structures.

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/content/aip/journal/apl/87/6/10.1063/1.2009048
2005-08-02
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Improved photoluminescence of 1.26μmInGaAs∕GaAs quantum wells assisted by Sb surfactant and indium-graded intermediate layers
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/6/10.1063/1.2009048
10.1063/1.2009048
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