Hybridization of Electron and Hole States in Semiconductor Quantum-Dot Molecules

Hybridization of Electron and Hole States in Semiconductor Quantum-Dot Molecules

A novel QD‐molecule system is realized using metal–organic vapor‐phase epitaxy growth. The dots are tunnel coupled via connected quantum wires (QWRs). The stronger tunnel coupling in this integrated QD‐QWR system allows the hybridization of both electron and hole states, yielding direct‐real‐space e...

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Veröffentlicht in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2009-02, Vol.5 (3), p.329-335
Hauptverfasser: Zhu, Qing, Karlsson, K. Fredrik, Byszewski, Marcin, Rudra, Alok, Pelucchi, Emanuele, He, Zhanbing, Kapon, Eli
Format: Artikel
Sprache:eng
Schlagworte:
electronic structure
Electrons
epitaxy
nanostructures
Nanostructures - chemistry
NATURAL SCIENCES
NATURVETENSKAP
Optics and Photonics - instrumentation
photoluminescence
Quantum Dots
Semiconductors
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Beschreibung
Zusammenfassung:A novel QD‐molecule system is realized using metal–organic vapor‐phase epitaxy growth. The dots are tunnel coupled via connected quantum wires (QWRs). The stronger tunnel coupling in this integrated QD‐QWR system allows the hybridization of both electron and hole states, yielding direct‐real‐space excitonic molecules (see image). The structure holds promise for nanophotonic devices for quantum‐information‐processing applications.
ISSN:1613-6810
1613-6829
1613-6829
DOI:10.1002/smll.200801214