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Study of the wetting layer of nanorings grown by droplet epitaxy
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10.1063/1.2883931
/content/aip/journal/apl/92/6/10.1063/1.2883931
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/6/10.1063/1.2883931
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The RD spectra measured at room temperature for the as-grown sample (solid) and the sample after annealing (dashed). The HH, LH, and GaAs features are indicated by arrows from left to right. The inset shows the AFM image of InAs structures for the as-grown samples.

Image of FIG. 2.
FIG. 2.

The PL spectra for the sample after annealing at different temperatures; the peaks are indicated by arrows. The lines in the circle from right to left are the results for 15, 60, 120, 135, and . The inset shows the temperature dependent PL behavior of the sample after annealing. The solid symbols are experimental data, and the solid line is theoretical simulation based on the model in Ref. 10.

Image of FIG. 3.
FIG. 3.

The schematic of the nanorings grown by droplet epitaxy and the corresponding band structure.

Image of FIG. 4.
FIG. 4.

(a) Average densities of InAs rings from AFM measurement; (b) variation of the second derivative RD spectrum with respect to wavelength with the samples indicated by the color contrast. The squares, circles, and triangles indicate the wavelengths of the LH related transition, HH related transition, and GaAs band edge, respectively

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/content/aip/journal/apl/92/6/10.1063/1.2883931
2008-02-15
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Study of the wetting layer of InAs∕GaAs nanorings grown by droplet epitaxy
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/6/10.1063/1.2883931
10.1063/1.2883931
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