| Issue |
Europhys. Lett.
Volume 53, Number 6, March 2001
|
|
|---|---|---|
| Page(s) | 769 - 775 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00218-2 | |
| Published online | 01 December 2003 | |
Multi-phonon transitions in II-VI quantum dot
Ioffe Physico-Technical Institute - 26 Polytechnicheskaya st.
St. Petersburg 194021, Russia
Received:
21
June
2000
Accepted:
27
December
2000
The intensity of polaron exciton absorption in a spherical
quantum dot is calculated. The localized electrons and holes are
shown to interact with long-wavelength phonons with wave vectors
, R being the radius of the dot.
In the case of strong electron-phonon interaction,
the polaron effect results in multiple phonon replicas of exciton optical
transition. The broadening of
different phonon replicas is shown to be less than their separation.
PACS: 71.38.+i – Polarons and electron-phonon interactions / 78.66.-w – Optical properties of specific thin films, surfaces, and low-dimensional structures / 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers)
© EDP Sciences, 2001
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