Intraband carrier relaxation in semiconductor quantum rods: competition between phonon-assisted cooling and Auger heating

Intraband carrier relaxation in semiconductor quantum rods: competition between phonon-assisted cooling and Auger heating

We study intraband carrier dynamics in elongated CdSe nanocrystals and observe that in the high-intensity regime, carrier heating through Auger recombination becomes very efficient, leading to a significant slowing down of carrier cooling dynamics.

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Bibliographische Detailangaben
Hauptverfasser: Achermann, M., Bartko, A.P., Hollingsworth, J.A., Klimov, V.I.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Charge carrier density
Cooling
Heating
Laser excitation
Lead compounds
Nanocrystals
Radiative recombination
Semiconductor materials
Spontaneous emission
Time measurement
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Beschreibung
Zusammenfassung:We study intraband carrier dynamics in elongated CdSe nanocrystals and observe that in the high-intensity regime, carrier heating through Auger recombination becomes very efficient, leading to a significant slowing down of carrier cooling dynamics.
DOI:10.1109/QELS.2005.1548832