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Theoretical analysis of 1.55 mu m emitting GaInNAs QD's on different substrates
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Tomic, Stanko and Jones, T. S. (Tim S.) (2008) Theoretical analysis of 1.55 mu m emitting GaInNAs QD's on different substrates. In: 13th International Conference on Modulated Semiconductor Structures (MSS13)/17th International Conference on Electronic Properties of 2-Dimensional Systems, Genova, Italy, Jul 15-20, 2007. Published in: Physica E: Low-Dimensional Systems and Nanostructures, Volume 40 (Number 6). pp. 1955-1957. ISSN 1386-9477. doi:10.1016/j.physe.2007.09.049
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Official URL: http://dx.doi.org/10.1016/j.physe.2007.09.049
Abstract
We present a theoretical study which compares the electronic and optical properties of dilute nitrogen GaInNAs quantum dots (QD) on two different substrates, GaAs and InP. The calculations are based on a 10 band k.p band-anti-crossing (BAC) Hamiltonian, incorporating valence, conduction and nitrogen-induced bands. We show that 1.55 mu m emission can be achieved on both substrates through appropriate tailoring of the QD size. On GaAs, the dominant dipole matrix element is the (e) over cap (x) and (e) over cap (y) light polarization, whereas on InP substrate, the dominant component is the (e) over cap (z) light polarization. Our results also identifiy the different In and N QD compositions required for long-wavelength emission on both substrates. (C) 2007 Elsevier B.V. All rights reserved.
| Item Type: | Conference Item (UNSPECIFIED) | ||||
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| Subjects: | T Technology Q Science > QC Physics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
| Library of Congress Subject Headings (LCSH): | Quantum dots, Semiconductors -- Optical properties | ||||
| Journal or Publication Title: | Physica E: Low-Dimensional Systems and Nanostructures | ||||
| Publisher: | Elsevier BV | ||||
| ISSN: | 1386-9477 | ||||
| Official Date: | April 2008 | ||||
| Dates: |
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| Volume: | Volume 40 | ||||
| Number: | Number 6 | ||||
| Number of Pages: | 3 | ||||
| Page Range: | pp. 1955-1957 | ||||
| DOI: | 10.1016/j.physe.2007.09.049 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Title of Event: | 13th International Conference on Modulated Semiconductor Structures (MSS13)/17th International Conference on Electronic Properties of 2-Dimensional Systems | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Genova, Italy | ||||
| Date(s) of Event: | Jul 15-20, 2007 |
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