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Nucleation and coalescence effects on the density of self-induced GaN nanowires grown by molecular beam epitaxy
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10.1063/1.3555450
/content/aip/journal/apl/98/7/10.1063/1.3555450
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/7/10.1063/1.3555450
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Evolution of the NW density, the cluster density, and the coalescence degree as a function of the growth time. The growth temperature and gallium rate are and 0.45 Å/s, respectively. The corresponding V/III ratio is 6.2. The inset is a top-view FESEM image of NWs after an effective growth time of 3 h.

Image of FIG. 2.
FIG. 2.

Evolution of the NW density, the cluster density, and the coalescence degree as a function of the gallium rate. The growth temperature is .

Image of FIG. 3.
FIG. 3.

Evolution of the NW density, the cluster density, and the coalescence degree as a function of the growth temperature. The gallium rate is 0.45 Å/s, which corresponds to a V/III ratio of 6.2.

Image of FIG. 4.
FIG. 4.

High resolution TEM image collected on a sample grown for 40 min at a substrate temperature and gallium rate of and 0.45 Å/s, respectively. The presence of nuclei as spherical-cap-shaped islands in addition to NWs is clearly shown.

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/content/aip/journal/apl/98/7/10.1063/1.3555450
2011-02-16
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nucleation and coalescence effects on the density of self-induced GaN nanowires grown by molecular beam epitaxy
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/7/10.1063/1.3555450
10.1063/1.3555450
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