Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot

J. J. Finley; P. W. Fry; A. D. Ashmore; A. Lemaître; A. I. Tartakovskii; R. Oulton; D. J. Mowbray; M. S. Skolnick; M. Hopkinson; P. D. Buckle; P. A. Maksym

doi:10.1103/PhysRevB.63.161305

Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot

J. J. Finley, P. W. Fry, A. D. Ashmore, A. Lemaître, A. I. Tartakovskii, R. Oulton, D. J. Mowbray, M. S. Skolnick, M. Hopkinson, P. D. Buckle, P. A. Maksym

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Abstract

The effects of excess electron occupation on the optical properties of excitons (X) and biexcitons(2X)in a single self-assembled InGaAs quantum dot are investigated. The behavior of X and 2X differ strongly as the number of excess electrons is varied with the biexciton being much more weakly perturbed as a result of its filled s-shell ground state, a direct manifestation of shell-filling effects. Good correlation is found between charging thresholds observed from s-shell recombination perturbed by p-shell occupation, and direct observation of p-shell recombination.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	63
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.63.161305
State	Published - 2001
Externally published	Yes

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Finley, J. J., Fry, P. W., Ashmore, A. D., Lemaître, A., Tartakovskii, A. I., Oulton, R., Mowbray, D. J., Skolnick, M. S., Hopkinson, M., Buckle, P. D., & Maksym, P. A. (2001). Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot. Physical Review B - Condensed Matter and Materials Physics, 63(16). https://doi.org/10.1103/PhysRevB.63.161305

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title = "Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot",

abstract = "The effects of excess electron occupation on the optical properties of excitons (X) and biexcitons(2X)in a single self-assembled InGaAs quantum dot are investigated. The behavior of X and 2X differ strongly as the number of excess electrons is varied with the biexciton being much more weakly perturbed as a result of its filled s-shell ground state, a direct manifestation of shell-filling effects. Good correlation is found between charging thresholds observed from s-shell recombination perturbed by p-shell occupation, and direct observation of p-shell recombination.",

author = "Finley, {J. J.} and Fry, {P. W.} and Ashmore, {A. D.} and A. Lema{\^i}tre and Tartakovskii, {A. I.} and R. Oulton and Mowbray, {D. J.} and Skolnick, {M. S.} and M. Hopkinson and Buckle, {P. D.} and Maksym, {P. A.}",

year = "2001",

doi = "10.1103/PhysRevB.63.161305",

language = "English",

volume = "63",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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publisher = "American Physical Society",

number = "16",

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T1 - Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot

AU - Finley, J. J.

AU - Fry, P. W.

AU - Ashmore, A. D.

AU - Lemaître, A.

AU - Tartakovskii, A. I.

AU - Oulton, R.

AU - Mowbray, D. J.

AU - Skolnick, M. S.

AU - Hopkinson, M.

AU - Buckle, P. D.

AU - Maksym, P. A.

PY - 2001

Y1 - 2001

N2 - The effects of excess electron occupation on the optical properties of excitons (X) and biexcitons(2X)in a single self-assembled InGaAs quantum dot are investigated. The behavior of X and 2X differ strongly as the number of excess electrons is varied with the biexciton being much more weakly perturbed as a result of its filled s-shell ground state, a direct manifestation of shell-filling effects. Good correlation is found between charging thresholds observed from s-shell recombination perturbed by p-shell occupation, and direct observation of p-shell recombination.

AB - The effects of excess electron occupation on the optical properties of excitons (X) and biexcitons(2X)in a single self-assembled InGaAs quantum dot are investigated. The behavior of X and 2X differ strongly as the number of excess electrons is varied with the biexciton being much more weakly perturbed as a result of its filled s-shell ground state, a direct manifestation of shell-filling effects. Good correlation is found between charging thresholds observed from s-shell recombination perturbed by p-shell occupation, and direct observation of p-shell recombination.

UR - http://www.scopus.com/inward/record.url?scp=0034879558&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.63.161305

DO - 10.1103/PhysRevB.63.161305

M3 - Article

AN - SCOPUS:0034879558

SN - 1098-0121

VL - 63

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 16

ER -

Observation of multicharged excitons and biexcitons in a single InGaAs quantum dot

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