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Localized growth of InAs quantum dots on nanopatterned InP(001) substrates
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10.1063/1.3078275
/content/aip/journal/apl/94/5/10.1063/1.3078275
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/5/10.1063/1.3078275
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AFM images of (a) nanoholes , depth and (b) localized InAs QDs after the growth of a 3 nm thick InP buffer layer and 0.8 ML of InAs.

Image of FIG. 2.
FIG. 2.

AFM images of (a) initial hole, , . (b) Patterns after the growth of 3 ML (0.9 nm) of InP. (c) Patterns after the growth of 3 nm of InP. (d) Patterns after the growth of 3 nm of InP and 0.8 ML of InAs. (e) Surface profiles before (black) and after the growth of 3 nm of InP (red) and 0.8 ML of InAs (green). Holes of 100 nm in diameter are shown here.

Image of FIG. 3.
FIG. 3.

Schematic representation of the growth on nanopatterned surface: (a) and (b) nucleation of InP atoms at the bottom of a hole, (c) and (d) formation of InP hill, and (e) nucleation of InAs dots.

Image of FIG. 4.
FIG. 4.

(a) PL map at 300 K and at the wavelength of a patterned area after the growth of 3 nm of InP and 0.8 ML of InAs and (b) PL spectrum from the localized InAs QDs (emission from QDs).

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/content/aip/journal/apl/94/5/10.1063/1.3078275
2009-02-05
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Localized growth of InAs quantum dots on nanopatterned InP(001) substrates
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/5/10.1063/1.3078275
10.1063/1.3078275
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