Strain-tunable quantum dot devices
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2023-04-14 17:25
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RASTELLI, A., TROTTA, R., ZALLO, E., ATKINSON, P., MAGERL, E., DING, F., PLUMHOF, J., KUMAR, S., DORR, K., SCHMIDT, Oliver. Strain-tunable quantum dot devices. In: Nanotechnologies and Biomedical Engineering, Ed. 1, 7-8 iulie 2011, Chișinău. Technical University of Moldova, 2011, Editia 1, p. 28. ISBN 978-9975-66-239-0..
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Nanotechnologies and Biomedical Engineering
Editia 1, 2011
Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
1, Chișinău, Moldova, 7-8 iulie 2011

Strain-tunable quantum dot devices


Pag. 28-28

Rastelli A., Trotta R., Zallo E., Atkinson P., Magerl E., Ding F., Plumhof J., Kumar S., Dorr K., Schmidt Oliver
 
Institute for Integrative Nanosciences
 
Disponibil în IBN: 3 iulie 2019


Rezumat

We introduce a new class of quantum dot-based devices, in which the semiconductor structures are integrated on top of piezoelectric actuators. This combination allows on one hand to study in detail the effects produced by variable strains (up to about 0.2%) on the excitonic emission of single quantum dots and on the other to manipulate their electronic- and optical properties to achieve specific requirements. In fact, by combining strain with electric fields we are able to obtain (i) independent control of emission energy and charge-state of a QD, (ii) wavelength-tunable single-QD light-emitting diodes and (iii) frequency-stabilized sources of single photons at predefined wavelengths. Possible future extensions and applications of this technology will be discussed.

Cuvinte-cheie
Epitaxial Quantum Dots, Single photon sources, Strained semiconductors, Tunable sources of single photons.