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Nano Lett. 2005 Mar;5(3):425-8.

Self-assembly of concentric quantum double rings.

Author information

1
Nanomaterials Laboratory, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan. MANO.Takaaki@nims.go.jp

Abstract

We demonstrate the self-assembled formation of concentric quantum double rings with high uniformity and excellent rotational symmetry using the droplet epitaxy technique. Varying the growth process conditions can control each ring's size. Photoluminescence spectra emitted from an individual quantum ring complex show peculiar quantized levels that are specified by the carriers' orbital trajectories.

PMID:
15755088
DOI:
10.1021/nl048192+
[Indexed for MEDLINE]

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