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Carrier cooling and recombination heating in intermixed GaAs/AlGaAs quantum wires and dots (1995)

Adler, F. ; Burkard, M. ; Schweizer, H. ; [et al.]

Springer

Il nuovo cimento della Società Italiana di Fisica 17 (1995), S. 1333-1337

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ISSN: 0392-6737

Keywords: Time resolved optical spectroscopies and other ultrafast optical measurements in condensed matter ; Conference proceedings

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Summary The cooling of photoexcited hot carriers in 2D, 1D and 0D systems is studied experimentally. In comparison with a theoretical carrier relaxation model which holds for 2D and 1D systems, it is found that preferably recombination and a weaker electron-LO-phonon interaction dominates the carrier dynamics with decreasing dimensionality. Consequently, we conclude a less dominant role of hotphonon effects in 0D and 1D systems compared to 2D systems.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02457205

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