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Strong plasmonic enhancement of photovoltage in graphene

Author

Listed:
  • T.J. Echtermeyer

    (University of Cambridge)

  • L. Britnell

    (School of Physics and Astronomy, University of Manchester)

  • P.K. Jasnos

    (University of Cambridge)

  • A. Lombardo

    (University of Cambridge)

  • R.V. Gorbachev

    (Centre for Mesoscience and Nanotechnology, University of Manchester)

  • A.N. Grigorenko

    (School of Physics and Astronomy, University of Manchester)

  • A.K. Geim

    (Centre for Mesoscience and Nanotechnology, University of Manchester)

  • A.C. Ferrari

    (University of Cambridge)

  • K.S. Novoselov

    (School of Physics and Astronomy, University of Manchester)

Abstract

From the wide spectrum of potential applications of graphene, ranging from transistors and chemical sensors to nanoelectromechanical devices and composites, the field of photonics and optoelectronics is believed to be one of the most promising. Indeed, graphene's suitability for high-speed photodetection was demonstrated in an optical communication link operating at 10 Gbit s−1. However, the low responsivity of graphene-based photodetectors compared with traditional III–V-based ones is a potential drawback. Here we show that, by combining graphene with plasmonic nanostructures, the efficiency of graphene-based photodetectors can be increased by up to 20 times, because of efficient field concentration in the area of a p–n junction. Additionally, wavelength and polarization selectivity can be achieved by employing nanostructures of different geometries.

Suggested Citation

  • T.J. Echtermeyer & L. Britnell & P.K. Jasnos & A. Lombardo & R.V. Gorbachev & A.N. Grigorenko & A.K. Geim & A.C. Ferrari & K.S. Novoselov, 2011. "Strong plasmonic enhancement of photovoltage in graphene," Nature Communications, Nature, vol. 2(1), pages 1-5, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1464
    DOI: 10.1038/ncomms1464
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    Cited by:

    1. Junxiong Guo & Shuyi Gu & Lin Lin & Yu Liu & Ji Cai & Hongyi Cai & Yu Tian & Yuelin Zhang & Qinghua Zhang & Ze Liu & Yafei Zhang & Xiaosheng Zhang & Yuan Lin & Wen Huang & Lin Gu & Jinxing Zhang, 2024. "Type-printable photodetector arrays for multichannel meta-infrared imaging," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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