Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot

S. Seidl; M. Kroner; P. A. Dalgarno; A. Högele; J. M. Smith; M. Ediger; B. D. Gerardot; J. M. Garcia; P. M. Petroff; K. Karrai; R. J. Warburton

doi:10.1103/PhysRevB.72.195339

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot

S. Seidl, M. Kroner, P. A. Dalgarno, A. Högele, J. M. Smith, M. Ediger, B. D. Gerardot, J. M. Garcia, P. M. Petroff, K. Karrai, R. J. Warburton

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

We have performed detailed photoluminescence (PL) and absorption spectroscopy on the same single self-assembled quantum dot in a charge-tunable device. The transition from neutral to charged exciton in the PL occurs at a more negative voltage than the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account for this observation. At large negative bias, the absorption broadens as a result of electron and hole tunneling. We observe resonant features in this regime whenever the quantum dot hole level is resonant with two-dimensional hole states located at the capping layer-blocking barrier interface in our structure. © 2005 The American Physical Society.

Original language	English
Article number	195339
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	72
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.72.195339
Publication status	Published - 15 Nov 2005

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Seidl, S., Kroner, M., Dalgarno, P. A., Högele, A., Smith, J. M., Ediger, M., Gerardot, B. D., Garcia, J. M., Petroff, P. M., Karrai, K., & Warburton, R. J. (2005). Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot. Physical Review B: Condensed Matter and Materials Physics, 72(19), 1-6. Article 195339. https://doi.org/10.1103/PhysRevB.72.195339

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title = "Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot",

abstract = "We have performed detailed photoluminescence (PL) and absorption spectroscopy on the same single self-assembled quantum dot in a charge-tunable device. The transition from neutral to charged exciton in the PL occurs at a more negative voltage than the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account for this observation. At large negative bias, the absorption broadens as a result of electron and hole tunneling. We observe resonant features in this regime whenever the quantum dot hole level is resonant with two-dimensional hole states located at the capping layer-blocking barrier interface in our structure. {\textcopyright} 2005 The American Physical Society.",

author = "S. Seidl and M. Kroner and Dalgarno, {P. A.} and A. H{\"o}gele and Smith, {J. M.} and M. Ediger and Gerardot, {B. D.} and Garcia, {J. M.} and Petroff, {P. M.} and K. Karrai and Warburton, {R. J.}",

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doi = "10.1103/PhysRevB.72.195339",

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Seidl, S, Kroner, M, Dalgarno, PA, Högele, A, Smith, JM, Ediger, M, Gerardot, BD, Garcia, JM, Petroff, PM, Karrai, K & Warburton, RJ 2005, 'Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot', Physical Review B: Condensed Matter and Materials Physics, vol. 72, no. 19, 195339, pp. 1-6. https://doi.org/10.1103/PhysRevB.72.195339

TY - JOUR

T1 - Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot

AU - Seidl, S.

AU - Kroner, M.

AU - Dalgarno, P. A.

AU - Högele, A.

AU - Smith, J. M.

AU - Ediger, M.

AU - Gerardot, B. D.

AU - Garcia, J. M.

AU - Petroff, P. M.

AU - Karrai, K.

AU - Warburton, R. J.

PY - 2005/11/15

Y1 - 2005/11/15

N2 - We have performed detailed photoluminescence (PL) and absorption spectroscopy on the same single self-assembled quantum dot in a charge-tunable device. The transition from neutral to charged exciton in the PL occurs at a more negative voltage than the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account for this observation. At large negative bias, the absorption broadens as a result of electron and hole tunneling. We observe resonant features in this regime whenever the quantum dot hole level is resonant with two-dimensional hole states located at the capping layer-blocking barrier interface in our structure. © 2005 The American Physical Society.

AB - We have performed detailed photoluminescence (PL) and absorption spectroscopy on the same single self-assembled quantum dot in a charge-tunable device. The transition from neutral to charged exciton in the PL occurs at a more negative voltage than the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account for this observation. At large negative bias, the absorption broadens as a result of electron and hole tunneling. We observe resonant features in this regime whenever the quantum dot hole level is resonant with two-dimensional hole states located at the capping layer-blocking barrier interface in our structure. © 2005 The American Physical Society.

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DO - 10.1103/PhysRevB.72.195339

M3 - Article

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VL - 72

SP - 1

EP - 6

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 19

M1 - 195339

ER -

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot

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