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Article

Dimension-Dependent Phenomenological Model of Excitonic Electric Dipole in InGaAs Quantum Dots

by 1,2 and 1,3,*
1
Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlářská 267/2, 61137 Brno, Czech Republic
2
Huygens-Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands
3
Czech Metrology Institute, Okružní 31, 63800 Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Alex Trukhanov
Nanomaterials 2022, 12(4), 719; https://doi.org/10.3390/nano12040719
Received: 24 January 2022 / Revised: 13 February 2022 / Accepted: 18 February 2022 / Published: 21 February 2022
Permanent electric dipole is a key property for effective control of semiconductor quantum-dot-based sources of quantum light. For theoretical prediction of that, complex geometry-dependent quantum simulations are necessary. Here, we use k·p simulations of exciton transition in InGaAs quantum dots to derive a simple geometry-dependent analytical model of dipole. Our model, discussed here, enables reasonably good estimation of the electric dipole, caused in quantum dot by the elastic strain, including an externally induced one. Due to its apparent simplicity, not necessitating elaborate and time-consuming simulations, it might after experimental verification serve as a preferred choice for experimentalists enabling them to make quick estimates of built-in and induced electric dipole in quantum dots. View Full-Text
Keywords: electric dipole; quantum dots; InGaAs; k·p method; electronic structure electric dipole; quantum dots; InGaAs; k·p method; electronic structure
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MDPI and ACS Style

Steindl, P.; Klenovský, P. Dimension-Dependent Phenomenological Model of Excitonic Electric Dipole in InGaAs Quantum Dots. Nanomaterials 2022, 12, 719. https://doi.org/10.3390/nano12040719

AMA Style

Steindl P, Klenovský P. Dimension-Dependent Phenomenological Model of Excitonic Electric Dipole in InGaAs Quantum Dots. Nanomaterials. 2022; 12(4):719. https://doi.org/10.3390/nano12040719

Chicago/Turabian Style

Steindl, Petr, and Petr Klenovský. 2022. "Dimension-Dependent Phenomenological Model of Excitonic Electric Dipole in InGaAs Quantum Dots" Nanomaterials 12, no. 4: 719. https://doi.org/10.3390/nano12040719

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