Time resolved optical spectroscopies and other ultrafast optical measurements in condensed matter
Springer Online Journal Archives 1860-2000
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.
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