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Photothermoelectric and Photoelectric Contributions to Light Detection in Metal–Graphene–Metal Photodetectors
Open accessAbstract
Graphene's high mobility and Fermi velocity, combined with its constant light absorption in the visible to far-infrared range, make it an ideal material to fabricate high-speed and ultrabroadband photodetectors. However, the precise mechanism of photodetection is still debated. Here, we report wavelength and polarization-dependent measurements of metal-graphene-metal photodetectors. This allows us to quantify and control the relative contributions of both photothermo- and photoelectric effects, both adding to the overall photoresponse. This paves the way for a more efficient photodetector design for ultrafast operating speeds.
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“These effectively DC responses were generated by a well-known photothermoelectric effect at the gold-graphene interfaces265,266, with net directionality due to the oriented plasmonic hot spots.”
From Ultrafast terahertz emission from emerging symmetry-broken materials (2023) · cites this paper as [266]
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Cites
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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
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Metadata
- Authors
- Echtermeyer, T. J., Nene, P. S., Trushin, M., Gorbachev, R. V., Eiden, A. L., Milana, S., Sun, Z., Schliemann, J., Lidorikis, E., Novoselov, K. S., & Ferrari, A. C.
- Affiliations
- University of Cambridge (GB)
- University of Konstanz (DE)
- University of Manchester (GB)
- University of Regensburg (DE)
- University of Ioannina (GR)
- Corresponding author
- Ferrari, A. C.
- ORCID
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-06-30
- Volume
- 14
- Issue
- 7
- Pages
- 3733-3742
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2070094906
- Cited by
- 188
- References
- 69
- Citations by year
- 2026: 7 · 2025: 10 · 2024: 15 · 2023: 7 · 2022: 14 · 2021: 12 · 2020: 18 · 2019: 17 · 2018: 25 · 2017: 18 · 2016: 22 · 2015: 18 · 2014: 5
- FWCI
- 9.53
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Nano Letters (publishedVersion)
- PubMed (publishedVersion)
- University of Regensburg Publication Server (University of Regensburg) (acceptedVersion)
- arXiv (Cornell University) (submittedVersion)
- KOPS (University of Konstanz) (submittedVersion)
- Cambridge University Engineering Department Publications Database (submittedVersion)
- Research Explorer (The University of Manchester) (submittedVersion)
- Apollo (University of Cambridge) (submittedVersion)
- arXiv (Cornell University)
- Apollo
- University of Regensburg Publication Server (University of Regensburg)
- Funders
- Graphene Flagship (604391)
- European Commission (604391)
- Deutsche Forschungsgemeinschaft (SPP 1285, GRK 1570)
- Engineering and Physical Sciences Research Council (EP/K017144/1, EP/K01711X/1, EP/L016087/1)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Plasmonic and Surface Plasmon Research
- Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
- Keywords
- graphene photodetectors, photothermoelectric effect, photoelectric effect, photodetection mechanism, wavelength-dependent photoresponse, ultrafast photodetection
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