Article Title

Holed nanostructures formed by aluminum droplets on a GaAs substrate

Authors

Alvason Zhenhua Li, Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
Zhiming M. Wang, Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
Jiang Wu, Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA
Gregory J. Salamo, Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA

Keywords

Droplet epitaxy, aluminum droplets, MBE, GaAs, holed nanostructures

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.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-0009-5

Publisher

Tsinghua University Press

Recommended Citation

Alvason Zhenhua Li,Zhiming M. Wang,Jiang Wu,Gregory J. Salamo, Holed nanostructures formed by aluminum droplets on a GaAs substrate. NanoRes.2010, 3: 490–495