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Ultrafast Photoluminescence from Graphene
Open accessAbstract
Since graphene has no band gap, photoluminescence is not expected from relaxed charge carriers. We have, however, observed significant light emission from graphene under excitation by ultrashort (30-fs) laser pulses. Light emission was found to occur across the visible spectral range (1.7-3.5 eV), with emitted photon energies exceeding that of the excitation laser (1.5 eV). The emission exhibits a nonlinear dependence on the laser fluence. In two-pulse correlation measurements, a dominant relaxation time of tens of femtoseconds is observed. A two-temperature model describing the electrons and their interaction with strongly coupled optical phonons can account for the experimental observations.
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Cites
Fine Structure Constant Defines Visual Transparency of Graphene
Nair, R. R., Blake, P., Grigorenko, A. N., Novoselov, K. S., Booth, T. J., Stauber, T., Peres, N. M. R., & Geim, A. K. (2008) · Science · doi:10.1126/science.1156965 · Cited by 9,084
Cited by
Zhu, S., Song, Y., Zhao, X., Shao, J., Zhang, J., & Yang, B. (2015) · Nano Research · doi:10.1007/s12274-014-0644-3 · Cited by 2,781
Zhang, S., Yang, J., Xu, R., Wang, F., Li, W., Ghufran, M., Zhang, Y.-W., Yu, Z., Zhang, G., Qin, Q., et al. (2014) · ACS Nano · doi:10.1021/nn503893j · Cited by 688
Sensitive room-temperature terahertz detection via the photothermoelectric effect in graphene
Cai, X., Sushkov, A. B., Suess, R. J., Jadidi, M. M., Jenkins, G. S., Nyakiti, L. O., Myers-Ward, R. L., Li, S., Yan, J., Gaskill, D. K., et al. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.182 · Cited by 632
Snapshots of non-equilibrium Dirac carrier distributions in graphene
Gierz, I., Petersen, J. C., Mitrano, M., Cacho, C., Turcu, I. C. E., Springate, E., Stöhr, A., Köhler, A., Starke, U., & Cavalleri, A. (2013) · Nature Materials · doi:10.1038/nmat3757 · Cited by 485
Ultrafast hot-carrier-dominated photocurrent in graphene
Sun, D., Aivazian, G., Jones, A. M., Ross, J. S., Yao, W., Cobden, D., & Xu, X. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2011.243 · Cited by 462
Metadata
- Authors
- Lui, C. H., Mak, K. F., Shan, J., & Heinz, T. F.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2010-09-16
- Volume
- 105
- Issue
- 12
- Pages
- 127404-127404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2079250422
- Cited by
- 489
- References
- 1
- FWCI
- 14.98
- Type
- journal article
- Language
- en
- Open access
- green
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- Lui, C. H., Mak, K. F., Shan, J., & Heinz, T. F. (2010). Ultrafast Photoluminescence from Graphene. Physical Review Letters. https://doi.org/10.1103/physrevlett.105.127404
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