The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Sensitive room-temperature terahertz detection via the photothermoelectric effect in graphene
Open accessAbstract
Terahertz radiation has uses in applications ranging from security to medicine. However, sensitive room-temperature detection of terahertz radiation is notoriously difficult. The hot-electron photothermoelectric effect in graphene is a promising detection mechanism; photoexcited carriers rapidly thermalize due to strong electron-electron interactions, but lose energy to the lattice more slowly. The electron temperature gradient drives electron diffusion, and asymmetry due to local gating or dissimilar contact metals produces a net current via the thermoelectric effect. Here, we demonstrate a graphene thermoelectric terahertz photodetector with sensitivity exceeding 10 V W(-1) (700 V W(-1)) at room temperature and noise-equivalent power less than 1,100 pW Hz(-1/2) (20 pW Hz(-1/2)), referenced to the incident (absorbed) power. This implies a performance that is competitive with the best room-temperature terahertz detectors for an optimally coupled device, and time-resolved measurements indicate that our graphene detector is eight to nine orders of magnitude faster than those. A simple model of the response, including contact asymmetries (resistance, work function and Fermi-energy pinning) reproduces the qualitative features of the data, and indicates that orders-of-magnitude sensitivity improvements are possible.
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Cites
Cutting-edge terahertz technology
Tonouchi, M. (2007) · Nature Photonics · doi:10.1038/nphoton.2007.3 · Cited by 6,301
Graphene photodetectors for high-speed optical communications
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A self-consistent theory for graphene transport
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Hot Carrier–Assisted Intrinsic Photoresponse in Graphene
Gabor, N. M., Song, J. C. W., Ma, Q., Nair, N. L., Taychatanapat, T., Watanabe, K., Taniguchi, T., Levitov, L. S., & Jarillo-Herrero, P. (2011) · Science · doi:10.1126/science.1211384 · Cited by 1,076
Graphene field-effect transistors as room-temperature terahertz detectors
Vicarelli, L., Vitiello, M. S., Coquillat, D., Lombardo, A., Ferrari, A. C., Knap, W., Polini, M., Pellegrini, V., & Tredicucci, A. (2012) · Nature Materials · doi:10.1038/nmat3417 · Cited by 1,071
Imaging with terahertz radiation
Chan, W. L., Deibel, J., & Mittleman, D. M. (2007) · Reports on Progress in Physics · doi:10.1088/0034-4885/70/8/r02 · Cited by 965
Bolometers for infrared and millimeter waves
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CMOS-compatible graphene photodetector covering all optical communication bands
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Thermoelectric and Magnetothermoelectric Transport Measurements of Graphene
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Cited by
Photodetectors based on graphene, other two-dimensional materials and hybrid systems
Koppens, F. H. L., Mueller, T., Avouris, P., Ferrari, A. C., Vitiello, M. S., & Polini, M. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.215 · Cited by 3,828
Photocurrent generation with two-dimensional van der Waals semiconductors
Buscema, M., Island, J. O., Groenendijk, D. J., Blanter, S. I., Steele, G. A., van der Zant, H. S. J., & Castellanos-Gomez, A. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00106d · Cited by 1,051
Metadata
- Authors
- 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., Murphy, T. E., Drew, H. D., & Fuhrer, M. S.
- Venue
- Nature Nanotechnology
- Published
- 2014-09-07
- Volume
- 9
- Issue
- 10
- Pages
- 814-819
- ISSN
- 1748-3387 (ISSN-L)
- 1748-3395
- OpenAlex
- W1984068758
- Cited by
- 632
- References
- 28
- FWCI
- 25.12
- Type
- journal article
- Language
- en
- Open access
- green
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- 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., Murphy, T. E., Drew, H. D., & Fuhrer, M. S. (2014). Sensitive room-temperature terahertz detection via the photothermoelectric effect in graphene. Nature Nanotechnology. https://doi.org/10.1038/nnano.2014.182
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