2014; Physical and Mathematical Sciences, 48(2 (234): 50–53
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INFLUENCE OF OPTICAL PHONON CONFINEMENT ON TWO-PHONON CAPTURE PROCESSES IN QUANTUM DOTS

Vartanyan Vartanyan*

Received: 2025-02-13 · Published: 2014-07-10

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CC BY 4.0 This work is licensed under a Creative Commons Attribution 4.0 International License.
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Original title
INFLUENCE OF OPTICAL PHONON CONFINEMENT ON TWO-PHONON CAPTURE PROCESSES IN QUANTUM DOTS
Author
Vartanyan Vartanyan
Published
2014-07-10
Licence
Creative Commons Attribution 4.0 International

Abstract

Electron capture process in GaAs/AlAs spherical quantum dot-quantum well structure is studied theoretically. The capture rate in two polar-optical-phononmediated capture processes has been calculated by taking into account the phonon confinement effect. Carrier capture is shown to proceed with rates as high as 1010 s–1 at temperature T>100 K. A short capture time is also achieved for low carrier density.
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