同心量子双环的自组装

Self-assembly of concentric quantum double rings.

作者信息

Mano Takaaki, Kuroda Takashi, Sanguinetti Stefano, Ochiai Tetsuyuki, Tateno Takahiro, Kim Jongsu, Noda Takeshi, Kawabe Mitsuo, Sakoda Kazuaki, Kido Giyuu, Koguchi Nobuyuki

机构信息

Nanomaterials Laboratory, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.

出版信息

Nano Lett. 2005 Mar;5(3):425-8. doi: 10.1021/nl048192+.

DOI:10.1021/nl048192+

PMID:15755088

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.

摘要

我们利用液滴外延技术展示了具有高度均匀性和出色旋转对称性的同心量子双环的自组装形成。改变生长过程条件可以控制每个环的尺寸。从单个量子环复合体发射的光致发光光谱显示出由载流子的轨道轨迹所确定的奇特量子化能级。