Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot

M. Ediger; P. A. Dalgarno; J. M. Smith; R. J. Warburton; K. Karrai; B. D. Gerardot; P. M. Petroff

doi:10.1063/1.1994282

Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot

M. Ediger, P. A. Dalgarno, J. M. Smith, R. J. Warburton, K. Karrai, B. D. Gerardot, P. M. Petroff

School of Engineering & Physical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report the generation of neutral, negatively charged and positively charged excitons in the same single InAs quantum dot in a controlled manner. The control parameters of the respective excitons are a vertical electric field, applied to a capacitor-like structure in which the quantum dots are embedded, and optical pump power. We have already established that Coulomb blockade can be exploited to control the charge of excitons containing one hole, the neutral exciton, X⁰, and the singly negatively charged exciton, X ^1-. We extend this concept to excitons containing 2 holes, the biexciton, 2X⁰, and significantly the singly positively charged exciton, X¹⁺. We support these assignments with a Coulomb blockade (CB) model. The emission from X^1- is always redshifted from X ⁰, but surprisingly we observe blue- as well as redshifts for X ¹⁺ from X⁰. © 2005 American Institute of Physics.

Original language	English
Title of host publication	Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27
Pages	667-668
Number of pages	2
Volume	772
DOIs	https://doi.org/10.1063/1.1994282
Publication status	Published - 30 Jun 2005
Event	27th International Conference on the Physics of Semiconductors - Flagstaff, Arizona, Argentina Duration: 26 Jul 2004 → 30 Jul 2004

Conference

Conference	27th International Conference on the Physics of Semiconductors
Abbreviated title	ICPS-27
Country/Territory	Argentina
City	Flagstaff, Arizona
Period	26/07/04 → 30/07/04

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10.1063/1.1994282

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Ediger, M., Dalgarno, P. A., Smith, J. M., Warburton, R. J., Karrai, K., Gerardot, B. D., & Petroff, P. M. (2005). Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot. In Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27 (Vol. 772, pp. 667-668) https://doi.org/10.1063/1.1994282

@inproceedings{098e907e08ad49ba8ee5d5df2caa3469,

title = "Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot",

abstract = "We report the generation of neutral, negatively charged and positively charged excitons in the same single InAs quantum dot in a controlled manner. The control parameters of the respective excitons are a vertical electric field, applied to a capacitor-like structure in which the quantum dots are embedded, and optical pump power. We have already established that Coulomb blockade can be exploited to control the charge of excitons containing one hole, the neutral exciton, X0, and the singly negatively charged exciton, X 1-. We extend this concept to excitons containing 2 holes, the biexciton, 2X0, and significantly the singly positively charged exciton, X1+. We support these assignments with a Coulomb blockade (CB) model. The emission from X1- is always redshifted from X 0, but surprisingly we observe blue- as well as redshifts for X 1+ from X0. {\textcopyright} 2005 American Institute of Physics.",

author = "M. Ediger and Dalgarno, {P. A.} and Smith, {J. M.} and Warburton, {R. J.} and K. Karrai and Gerardot, {B. D.} and Petroff, {P. M.}",

year = "2005",

month = jun,

day = "30",

doi = "10.1063/1.1994282",

language = "English",

isbn = "0735402574",

volume = "772",

pages = "667--668",

booktitle = "Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27",

note = "27th International Conference on the Physics of Semiconductors, ICPS-27 ; Conference date: 26-07-2004 Through 30-07-2004",

}

Ediger, M, Dalgarno, PA, Smith, JM, Warburton, RJ, Karrai, K, Gerardot, BD & Petroff, PM 2005, Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot. in Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27. vol. 772, pp. 667-668, 27th International Conference on the Physics of Semiconductors, Flagstaff, Arizona, Argentina, 26/07/04. https://doi.org/10.1063/1.1994282

Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot. / Ediger, M.; Dalgarno, P. A.; Smith, J. M. et al.
Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27. Vol. 772 2005. p. 667-668.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot

AU - Ediger, M.

AU - Dalgarno, P. A.

AU - Smith, J. M.

AU - Warburton, R. J.

AU - Karrai, K.

AU - Gerardot, B. D.

AU - Petroff, P. M.

PY - 2005/6/30

Y1 - 2005/6/30

N2 - We report the generation of neutral, negatively charged and positively charged excitons in the same single InAs quantum dot in a controlled manner. The control parameters of the respective excitons are a vertical electric field, applied to a capacitor-like structure in which the quantum dots are embedded, and optical pump power. We have already established that Coulomb blockade can be exploited to control the charge of excitons containing one hole, the neutral exciton, X0, and the singly negatively charged exciton, X 1-. We extend this concept to excitons containing 2 holes, the biexciton, 2X0, and significantly the singly positively charged exciton, X1+. We support these assignments with a Coulomb blockade (CB) model. The emission from X1- is always redshifted from X 0, but surprisingly we observe blue- as well as redshifts for X 1+ from X0. © 2005 American Institute of Physics.

AB - We report the generation of neutral, negatively charged and positively charged excitons in the same single InAs quantum dot in a controlled manner. The control parameters of the respective excitons are a vertical electric field, applied to a capacitor-like structure in which the quantum dots are embedded, and optical pump power. We have already established that Coulomb blockade can be exploited to control the charge of excitons containing one hole, the neutral exciton, X0, and the singly negatively charged exciton, X 1-. We extend this concept to excitons containing 2 holes, the biexciton, 2X0, and significantly the singly positively charged exciton, X1+. We support these assignments with a Coulomb blockade (CB) model. The emission from X1- is always redshifted from X 0, but surprisingly we observe blue- as well as redshifts for X 1+ from X0. © 2005 American Institute of Physics.

U2 - 10.1063/1.1994282

DO - 10.1063/1.1994282

M3 - Conference contribution

SN - 0735402574

SN - 9780735402577

VL - 772

SP - 667

EP - 668

BT - Physics of Semiconductors: 27th International Conference on the Physics of Semiconductors, ICPS-27

T2 - 27th International Conference on the Physics of Semiconductors

Y2 - 26 July 2004 through 30 July 2004

ER -

Controlled generation of neutral, negatively charged and positively charged excitons in the same single quantum dot

Abstract

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