Cited by 188Graphene research and applicationsPlasmonic and Surface Plasmon Research2D Materials and Applications

Photothermoelectric and Photoelectric Contributions to Light Detection in Metal–Graphene–Metal Photodetectors

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Echtermeyer, T. J., Nene, P. S., Trushin, M., Gorbachev, R. V., Eiden, A. L., Milana, S., Sun, Z., Schliemann, J. +3 more·2014·Nano Letters

Abstract

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 photothermoelectric effect at the gold-graphene interfaces, with net directionality due to oriented plasmonic hot spots.

    “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.”

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Research works printed but not linked: 2

  1. [29]D. Spirito, D. Coquillat, S. L. De Bonis, A. Lombardo, M. Bruna, A. C. Ferrari, V. Pellegrini, A. Tredicucci, W. Knap, M. S. Vitiello; arXiv:1312.3737 (2013) · arXiv
  2. [31]M. C. Lemme, T. J. Echtermeyer, M. Baus, H. Kurz, IEEE EDL 28 , 282 (2007).

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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.
Venue
Nano Letters
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
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 › Engineering › Biomedical Engineering › 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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