Abstract

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.
https://static-content.springer.com/image/art%3A10.1007%2Fs12274-010-0009-5/MediaObjects/12274_2010_9_Fig1_HTML.jpg

Keywords

Droplet epitaxy aluminum droplets MBE GaAs holed nanostructures

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010