{
  "id": "1510.02166",
  "version": "v1",
  "published": "2015-10-07T23:27:59.000Z",
  "updated": "2015-10-07T23:27:59.000Z",
  "title": "Ultrafast Response of Monolayer Molybdenum Disulfide (MoS2) Photodetectors",
  "authors": [
    "Haining Wang",
    "Changjian Zhang",
    "Weimin Chan",
    "Sandip Tiwari",
    "Farhan Rana"
  ],
  "comment": "14 pages, 3 figures, 5 Supplementary Notes",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "The strong light emission and absorption exhibited by single atomic layer transitional metal dichalcogenides in the visible to near-infrared wavelength range makes them attractive for optoelectronic applications. In this work, using two-pulse photovoltage correlation technique, we show that monolayer molybdenum disulfide photodetector can have intrinsic response times as short as 3 ps implying photodetection bandwidths as wide as 300 GHz. The fast photodetector response is a result of the short electron-hole and exciton lifetimes in this material. Recombination of photoexcited carriers in most two-dimensional metal dichalcogenides is dominated by non-radiative processes, most notable among which is Auger scattering. The fast response time, and the ease of fabrication of these devices, make them interesting for low-cost ultrafast optical communication links.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-10-07T23:27:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "monolayer molybdenum disulfide",
      "ultrafast response",
      "ultrafast optical communication links",
      "photodetector",
      "atomic layer transitional metal dichalcogenides"
    ],
    "publication": {
      "doi": "10.1038/ncomms9831",
      "journal": "Nature Communications",
      "year": 2015,
      "month": "Nov",
      "volume": 6,
      "pages": 8831
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015NatCo...6E8831W"
    }
  }
}