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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, John ; Lidorikis, E. ; Novoselov, K. S. ; Ferrari, A. C.
Date of publication of this fulltext: 22 Jul 2015 09:52


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 ...


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