Kinetics of Exciton Emission Patterns and Carrier Transport
Mesoscale and Nanoscale Physics
2010-03-18 v1
Abstract
We report on the measurements of the kinetics of expanding and collapsing rings in the exciton emission pattern. The rings are found to preserve their integrity during expansion and collapse, indicating that the observed kinetics is controlled by charge carrier transport rather than by a much faster process of exciton production and decay. The relation between ring kinetics and carrier transport, revealed by our experiment and confirmed by comparison with a theoretical model, is used to determine electron and hole transport characteristics in a contactless fashion.
Keywords
Cite
@article{arxiv.0908.2978,
title = {Kinetics of Exciton Emission Patterns and Carrier Transport},
author = {Sen Yang and L. V. Butov and L. S. Levitov and B. D. Simons and A. C. Gossard},
journal= {arXiv preprint arXiv:0908.2978},
year = {2010}
}
Comments
6 pages, 4 figures