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New physics and devices based on self-assembled semiconductor quantum dots

D J Mowbray and M S Skolnick

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Self-assembled semiconductor quantum dots (QDs) exhibit fully quantized electronic states and high radiative efficiencies. This makes them highly suitable both for fundamental physics studies of zero-dimensionality, atomic-like semiconductor systems and applications in a range of novel electro-optical devices. This review discusses recent important advances in the study and application of semiconductor QDs. Using a wide range of optical spectroscopy techniques, it is possible to obtain a detailed understanding of the electronic structure and dynamical carrier processes. Such an understanding is required for the implementation of a wide range of QD-based devices.


PACS

73.21.La Quantum dots

71.35.-y Excitons and related phenomena

78.55.-m Photoluminescence, properties and materials

78.67.Hc Quantum dots

42.79.-e Optical elements, devices, and systems

85.35.Be Quantum well devices (quantum dots, quantum wires, etc.)

Subjects

Electronics and devices

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Optics, quantum optics and lasers

Nanoscale science and low-D systems

Dates

Issue 13 (7 July 2005)

Received 7 January 2005

Published 17 June 2005



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