Excited state dynamics in In0.5Al0.04Ga0.46As/Al0.08Ga0.92As self-assembled quantum dots

L.M. Smith; Kristjan Leosson; John Erland Østergaard; Jacob Riis Jensen; Jørn Märcher Hvam; V. Zwiller

doi:10.1002/1521-3951(200103)224:2<447::AID-PSSB447>3.0.CO;2-F

Excited state dynamics in In0.5Al0.04Ga0.46As/Al0.08Ga0.92As self-assembled quantum dots

L.M. Smith, Kristjan Leosson, John Erland Østergaard, Jacob Riis Jensen, Jørn Märcher Hvam, V. Zwiller

Lund University

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We use time-resolved photoluminescence spectroscopy to probe the relaxation of excited states in In0.5Al0.04Ga0.40As/Al0.08Ga0.92As self-assembled quantum dots. The relaxation rate of excitons confined to the quantum dots increases by nearly an order of magnitude as the energy of the states approaches the top of the quantum dot potential. This dramatic change in the dynamics of these states reflects the increasing complexity of the states localized near the top of the quantum dots.

Original language	English
Journal	Physica Status Solidi B
Volume	224
Issue number	2
Pages (from-to)	447-451
ISSN	0370-1972
DOIs	https://doi.org/10.1002/1521-3951(200103)224:2<447::AID-PSSB447>3.0.CO;2-F
Publication status	Published - 2001

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title = "Excited state dynamics in In0.5Al0.04Ga0.46As/Al0.08Ga0.92As self-assembled quantum dots",

abstract = "We use time-resolved photoluminescence spectroscopy to probe the relaxation of excited states in In0.5Al0.04Ga0.40As/Al0.08Ga0.92As self-assembled quantum dots. The relaxation rate of excitons confined to the quantum dots increases by nearly an order of magnitude as the energy of the states approaches the top of the quantum dot potential. This dramatic change in the dynamics of these states reflects the increasing complexity of the states localized near the top of the quantum dots.",

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doi = "10.1002/1521-3951(200103)224:2<447::AID-PSSB447>3.0.CO;2-F",

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T1 - Excited state dynamics in In0.5Al0.04Ga0.46As/Al0.08Ga0.92As self-assembled quantum dots

AU - Smith, L.M.

AU - Leosson, Kristjan

AU - Østergaard, John Erland

AU - Jensen, Jacob Riis

AU - Hvam, Jørn Märcher

AU - Zwiller, V.

PY - 2001

Y1 - 2001

N2 - We use time-resolved photoluminescence spectroscopy to probe the relaxation of excited states in In0.5Al0.04Ga0.40As/Al0.08Ga0.92As self-assembled quantum dots. The relaxation rate of excitons confined to the quantum dots increases by nearly an order of magnitude as the energy of the states approaches the top of the quantum dot potential. This dramatic change in the dynamics of these states reflects the increasing complexity of the states localized near the top of the quantum dots.

AB - We use time-resolved photoluminescence spectroscopy to probe the relaxation of excited states in In0.5Al0.04Ga0.40As/Al0.08Ga0.92As self-assembled quantum dots. The relaxation rate of excitons confined to the quantum dots increases by nearly an order of magnitude as the energy of the states approaches the top of the quantum dot potential. This dramatic change in the dynamics of these states reflects the increasing complexity of the states localized near the top of the quantum dots.

U2 - 10.1002/1521-3951(200103)224:2<447::AID-PSSB447>3.0.CO;2-F

DO - 10.1002/1521-3951(200103)224:2<447::AID-PSSB447>3.0.CO;2-F

M3 - Journal article

SN - 0370-1972

VL - 224

SP - 447

EP - 451

JO - Physica Status Solidi B

JF - Physica Status Solidi B

IS - 2

ER -

Excited state dynamics in In0.5Al0.04Ga0.46As/Al0.08Ga0.92As self-assembled quantum dots

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