Research Article


2010, 3: 490–495


Holed Nanostructures Formed by Aluminum Droplets on a GaAs Substrate

Alvason Zhenhua Li (), Zhiming M. Wang (), Jiang Wu, and Gregory J. Salamo

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Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA

Keywords: Droplet epitaxy, aluminum droplets, MBE, GaAs, holed nanostructures
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  • Abstract
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We have studied the morphology evolution of holed nanostructures formed by aluminum droplet epitaxy on a GaAs surface. Unique outer rings with concentric inner holed rings were observed. Further, an empirical equation to describe the size distribution of the outer rings in the holed nanostructures has been established. The contour line generated by the equation provides physical insights into quantum ring formation by droplets of group Ⅲ materials on Ⅲ–Ⅴ substrates.
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Holed Nanostructures Formed by Aluminum Droplets on a GaAs Substrate. Nano Res. 2010, 3: 490–495

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