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Carrier recombination and generation rates for intravalley and intervalley phonon scattering in graphene
Open accessAbstract
Electron-hole generation and recombination rates for intravalley and intervalley phonon scattering in graphene are presented. The transverse and the longitudinal optical phonon modes (${E}_{2g}$ modes) near the zone center ($\ensuremath{\Gamma}$ point) contribute to intravalley interband carrier scattering. At the zone edge [$K({K}^{\ensuremath{'}})$ point], only the transverse optical phonon mode (${A}_{1}^{\ensuremath{'}}$ mode) contributes significantly to intervalley interband scattering with recombination rates faster than those due to zone-center phonons. The calculated recombination times range from less than a picosecond to more than hundreds of picoseconds and are strong functions of temperature and electron and hole densities. The theoretical calculations agree well with experimental measurements of the recombination rates of photoexcited carriers in graphene.
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Citations
Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
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Graphene-based nanomaterials for drug delivery and tissue engineering
Goenka, S., Sant, V., & Sant, S. (2014) · Journal of Controlled Release · doi:10.1016/j.jconrel.2013.10.017 · Cited by 1,311
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy
Ulbricht, R., Hendry, E., Shan, J., Heinz, T. F., & Bonn, M. (2011) · Reviews of Modern Physics · doi:10.1103/revmodphys.83.543 · Cited by 1,293
Metadata
- Authors
- Rana, F., George, P. A., Strait, J. H., Dawlaty, J., Shivaraman, S., Chandrashekhar, M., & Spencer, M. G.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2009-03-31
- Volume
- 79
- Issue
- 11
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2147398712
- Cited by
- 240
- References
- 1
- FWCI
- 11.64
- Type
- journal article
- Language
- en
- Open access
- green
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- Rana, F., George, P. A., Strait, J. H., Dawlaty, J., Shivaraman, S., Chandrashekhar, M., & Spencer, M. G. (2009). Carrier recombination and generation rates for intravalley and intervalley phonon scattering in graphene. Physical Review B. https://doi.org/10.1103/physrevb.79.115447
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