Quantum dots: A new quantum state?

被引：19

作者：

Guyot-Sionnest, P

机构：

[1] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

[2] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

来源：

NATURE MATERIALS | 2005年 / 4卷 / 09期

关键词：

D O I：

10.1038/nmat1473

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The absorption of one high-energy photon by a quantum dot can generate several electron hole pairs, known as excitons. Excitons might collide with valence band electrons, promoting them to the conduction band, if its energy level exceeds than the band gap. The single exciton state and multi-excitonic states of similar energy are strongly coupled to form a new quantum state. Understanding this concept might lead to new aspects in the physics of carrier interaction in quantum-confined nanostructures.

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页码：653 / 654

页数：2

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