Hot carrier and hot phonon coupling during ultrafast relaxation of photoexcited electrons in graphene

@article{Iglesias2016HotCA,
title={Hot carrier and hot phonon coupling during ultrafast relaxation of photoexcited electrons in graphene},
author={Jos{\'e} M. Iglesias and Mar'ia J. Mart'in and Elena Pascual and Ra{\'u}l Rengel},
journal={arXiv: Mesoscale and Nanoscale Physics},
year={2016}
}
• J. M. Iglesias, +1 author R. Rengel
• Published 27 January 2016
• Physics, Materials Science
• arXiv: Mesoscale and Nanoscale Physics
We study, by means of a Monte Carlo simulator, the hot phonon effect on the relaxation dynamics in photoexcited graphene and its quantitative impact as compared to considering an equilibrium phonon distribution. Our multi-particle approach indicates that neglecting the hot phonon effect significantly underestimates the relaxation times in photoexcited graphene. The hot phonon effect is more important for a higher energy of the excitation pulse and photocarrier densities between $1$ and \$3\times…
22 Citations

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