Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence

Wolfgang Werner Langbein; Hannes Gislason; Jørn Märcher Hvam; J Zeman

doi:10.1109/IQEC.1998.680177

Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence

Wolfgang Werner Langbein, Hannes Gislason, Jørn Märcher Hvam, J Zeman

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

The realization of one-dimensional (1D) semiconductor nanostructures with large confinement energies is of importance for device applications. Different techniques such as growth on tilted substrates (Serpentine superlattices) or prepatterned substrates (V-groove quantum wires) and the cleaved-edge overgrowth of T-shaped structures have been demonstrated. For the T-shaped structures, the confinement energy has been recently increased to above 2kBT at room temperature by optimizing structure parameters. A decreased exciton diameter in the [110] direction in the wire compared with the [110] well was revealed by magneto-photoluminescence. We determine here the extension of the T-shaped quantum wire (T-QWR) state in both confining directions [110] and [001] to verify its 1D character, as shown for crescent-shaped wires

Original language	English
Title of host publication	Summaries of papers presented at the International Quantum Electronics Conference
Publisher	IEEE
Publication date	1998
Pages	86-87
ISBN (Print)	1557525420
DOIs	https://doi.org/10.1109/IQEC.1998.680177
Publication status	Published - 1998
Event	1998 International Quantum Electronics Conference - San Francisco, CA, United States Duration: 3 May 1998 → 8 May 1998

Conference

Conference	1998 International Quantum Electronics Conference
Country/Territory	United States
City	San Francisco, CA
Period	03/05/1998 → 08/05/1998

Bibliographical note

Copyright 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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title = "Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence",

abstract = "The realization of one-dimensional (1D) semiconductor nanostructures with large confinement energies is of importance for device applications. Different techniques such as growth on tilted substrates (Serpentine superlattices) or prepatterned substrates (V-groove quantum wires) and the cleaved-edge overgrowth of T-shaped structures have been demonstrated. For the T-shaped structures, the confinement energy has been recently increased to above 2kBT at room temperature by optimizing structure parameters. A decreased exciton diameter in the [110] direction in the wire compared with the [110] well was revealed by magneto-photoluminescence. We determine here the extension of the T-shaped quantum wire (T-QWR) state in both confining directions [110] and [001] to verify its 1D character, as shown for crescent-shaped wires",

author = "Langbein, {Wolfgang Werner} and Hannes Gislason and Hvam, {J{\o}rn M{\"a}rcher} and J Zeman",

note = "Copyright 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.; 1998 International Quantum Electronics Conference, IQEC'98 ; Conference date: 03-05-1998 Through 08-05-1998",

year = "1998",

doi = "10.1109/IQEC.1998.680177",

language = "English",

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pages = "86--87",

booktitle = "Summaries of papers presented at the International Quantum Electronics Conference",

publisher = "IEEE",

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Langbein, WW, Gislason, H, Hvam, JM & Zeman, J 1998, Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence. in Summaries of papers presented at the International Quantum Electronics Conference. IEEE, pp. 86-87, 1998 International Quantum Electronics Conference, San Francisco, CA, United States, 03/05/1998. https://doi.org/10.1109/IQEC.1998.680177

Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence. / Langbein, Wolfgang Werner; Gislason, Hannes; Hvam, Jørn Märcher et al.
Summaries of papers presented at the International Quantum Electronics Conference. IEEE, 1998. p. 86-87.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Zeman, J

N1 - Copyright 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 1998

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N2 - The realization of one-dimensional (1D) semiconductor nanostructures with large confinement energies is of importance for device applications. Different techniques such as growth on tilted substrates (Serpentine superlattices) or prepatterned substrates (V-groove quantum wires) and the cleaved-edge overgrowth of T-shaped structures have been demonstrated. For the T-shaped structures, the confinement energy has been recently increased to above 2kBT at room temperature by optimizing structure parameters. A decreased exciton diameter in the [110] direction in the wire compared with the [110] well was revealed by magneto-photoluminescence. We determine here the extension of the T-shaped quantum wire (T-QWR) state in both confining directions [110] and [001] to verify its 1D character, as shown for crescent-shaped wires

AB - The realization of one-dimensional (1D) semiconductor nanostructures with large confinement energies is of importance for device applications. Different techniques such as growth on tilted substrates (Serpentine superlattices) or prepatterned substrates (V-groove quantum wires) and the cleaved-edge overgrowth of T-shaped structures have been demonstrated. For the T-shaped structures, the confinement energy has been recently increased to above 2kBT at room temperature by optimizing structure parameters. A decreased exciton diameter in the [110] direction in the wire compared with the [110] well was revealed by magneto-photoluminescence. We determine here the extension of the T-shaped quantum wire (T-QWR) state in both confining directions [110] and [001] to verify its 1D character, as shown for crescent-shaped wires

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Anisotropic carrier and exciton confinement in T-shaped quantum wires revealed by magneto-photoluminescence

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