On-chip integrated, silicon-graphene plasmonic Schottky photodetector, with high responsivity and avalanche photogain
arXiv:1512.08153 · doi:10.1021/acs.nanolett.5b05216
Abstract
We report an on-chip integrated metal-graphene-silicon plasmonic Schottky photodetector with 85mA/W responsivity at 1.55 um and 7% internal quantum efficiency. This is one order of magnitude higher than metal-silicon Schottky photodetectors operated in the same conditions. At a reverse bias of 3V, we achieve avalanche multiplication, with 0.37A/W responsivity and avalanche photogain~2. This paves the way to graphene integrated silicon photonics.
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