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Single InAs quantum dot arrays and directed self-organization on patterned GaAs (311)B substrates
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10.1063/1.3167813
/content/aip/journal/apl/94/26/10.1063/1.3167813
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/26/10.1063/1.3167813
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AFM images of the coalescence of InAs QD molecules into single QD arrays. (a) QD molecules, [(b)–(e)] transition stages as function of QD and SL growth temperatures, InAs amount, and annealing conditions as indicated in the text and figures, and (f) optimized single InAs QD arrays. The full height contrast is 15–20 nm.

Image of FIG. 2.
FIG. 2.

RHEED patterns taken along during InAs QD formation. (a) SL template surface, (b) onset of QD formation, (c) single QD arrays, and (d) QD molecules.

Image of FIG. 3.
FIG. 3.

AFM images of single InAs QD arrays on (a) round hole and (b) zigzag mesa patterns. The inset in (a) shows the FFT image of the QD arrays in the center of the round hole pattern. The full height contrast is 50 nm.

Image of FIG. 4.
FIG. 4.

Temperature dependent micro-PL spectra of the capped single InAs QD arrays on patterned substrates. (a) Overview in the QDs and SL template spectral regions, and (b) in the QDs spectral region with resolution. The inset in (b) shows the linewidth broadening with increasing temperature measured for various lines indicated by the error bars.

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/content/aip/journal/apl/94/26/10.1063/1.3167813
2009-07-01
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Single InAs quantum dot arrays and directed self-organization on patterned GaAs (311)B substrates
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/26/10.1063/1.3167813
10.1063/1.3167813
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