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Ultrafast relaxation of photoexcited carriers in semiconductor quantum wires: A Monte Carlo approach.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rota Rossi Lugli Molinari |
| Copyright Year | 1995 |
| Abstract | A detailed analysis of the cooling and thermalization process for photogenerated carriers in semiconductor quantum wires is presented. The energy relaxation of the nonequilibrium carrier distribution is investigated for the ``realistic'' case of a rectangular multisubband quantum-wire structure. By means of a direct ensemble Monte Carlo simulation of both the carrier and the phonon dynamics, all the nonlinear phenomena relevant for the relaxation process, such as carrier-carrier interaction, hot-phonon effects, and degeneracy, are investigated. The results of these simulated experiments show a significant reduction of the carrier-relaxation process compared to the bulk case, which is mainly due to the reduced efficiency of carrier-carrier scattering; on the contrary, the role of hot-phonon effects and degeneracy seems to be not so different from that played in bulk semiconductors. |
| Starting Page | 5183 |
| Ending Page | 5201 |
| Page Count | 19 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevB.52.5183 |
| PubMed reference number | 9981704 |
| Journal | Medline |
| Volume Number | 52 |
| Issue Number | 7 |
| Alternate Webpage(s) | https://iris.polito.it/retrieve/handle/11583/2498594/57114/Rota-Rossi_PRB_52_5183_1995.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevB.52.5183 |
| Journal | Physical review. B, Condensed matter |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
