Giant permanent dipole moments of excitons in semiconductor nanostructures -: art. no. 113303

被引：145

作者：

Warburton, RJ ^{[1
]}

Schulhauser, C

Haft, D

Schäflein, C

Karrai, K

Garcia, JM

Schoenfeld, W

Petroff, PM

机构：

[1] Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Munich, Ctr Nanosci, D-80539 Munich, Germany

[3] Univ Munich, Sekt Phys, D-80539 Munich, Germany

[4] Inst Microelect Madrid, CNM, CSIC Isaac Newton, Madrid, Spain

[5] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[6] Univ Calif Santa Barbara, QUEST, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.65.113303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the vertical Stark effect of excitons confined to individual self-assembled ring-shaped quantum dots. We find that the excitons have very large permanent dipole moments corresponding to electron-hole separations up to 2.5 nm, comparable to the nanostructures' physical height. We find a trend of both permanent dipole moment and polarizability on the emission energy, but a very strong correlation between the permanent dipole moment and the polarizability.

引用

页码：1 / 4

页数：4

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