ATTENTION: The software behind KU ScholarWorks is being upgraded to a new version. Starting July 15th, users will not be able to log in to the system, add items, nor make any changes until the new version is in place at the end of July. Searching for articles and opening files will continue to work while the system is being updated.
If you have any questions, please contact Marianne Reed at mreed@ku.edu .
Energy relaxation during hot-exciton transport in quantum wells: Direct observation by spatially resolved phonon-sideband spectroscopy
dc.contributor.author | Zhao, Hui | |
dc.contributor.author | Moehl, Sebastian | |
dc.contributor.author | Kalt, Heinz | |
dc.date.accessioned | 2011-04-06T20:10:48Z | |
dc.date.available | 2011-04-06T20:10:48Z | |
dc.date.issued | 2002-10 | |
dc.identifier.citation | Hui Zhao, S. Moehl, H. Kalt, Energy relaxation during hot-exciton transport in quantum wells: Direct observation by spatially resolved phonon-sideband spectroscopy, Appl. Phys. Lett. 81, 2794 (2002). http://link.aip.org/link/doi/10.1063/1.1512819 | |
dc.identifier.uri | http://hdl.handle.net/1808/7358 | |
dc.description | Permissions were not obtained for sharing the full text of this article. Full text is available from the American Institute of Physics and from arXiv. See links in this record. | |
dc.description.abstract | We investigate the energy relaxation of excitons during the real-space transport in ZnSe quantum wells by using microphotoluminescence with spatial resolution enhanced by a solid immersion lens. The spatial evolution of the LO-phonon sideband, originating from the LO-phonon assisted recombination of hot excitons, is measured directly. By calculating the LO-phonon assisted recombination probability, we obtain the nonthermal energy distribution of excitons and observe directly the energy relaxation of hot excitons during their transport. We find the excitons remain hot during their transport on a length scale of several micrometers. Thus, the excitonic transport on this scale cannot be described by classical diffusion. | |
dc.publisher | American Institute of Physics | |
dc.relation.hasversion | http://arxiv.org/abs/cond-mat/0205065v2 | |
dc.subject | Strongly Correlated Electrons | |
dc.subject | Mesoscale and Nanoscale Physics | |
dc.title | Energy relaxation during hot-exciton transport in quantum wells: Direct observation by spatially resolved phonon-sideband spectroscopy | |
dc.type | Other | |
kusw.kuauthor | Zhao, Hui | |
kusw.kudepartment | Physics and Astronomy | |
kusw.oastatus | publisherdenied | |
dc.identifier.doi | 10.1063/1.1512819 | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. Publisher denied. | |
dc.rights.accessrights | openAccess |