{
  "id": "1604.02869",
  "version": "v1",
  "published": "2016-04-11T10:26:02.000Z",
  "updated": "2016-04-11T10:26:02.000Z",
  "title": "Evaluation of Disorder Introduced by Electrolyte Gating through Transport Measurements in Graphene",
  "authors": [
    "Andrew Browning",
    "Norio Kumada",
    "Yoshiaki Sekine",
    "Hiroshi Irie",
    "Koji Muraki",
    "Hideki Yamamoto"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We evaluate the degree of disorder in electrolyte gating devices through the transport measurements in graphene. By comparing the mobility in ion- and standard metal-gated devices, we show that the deposition of the ionic liquid introduces charged impurities with a density of approximately $6\\times 10^{12}$ cm$^{-2}$; setting the upper limit of the mobility in graphene to 3000 cm$^2$/Vs. At higher temperature, phonons in the ionic liquid further reduce the mobility, making its upper limit 2000 cm$^2$/Vs at room temperature. Since the degree of disorder is independent of the base material, these results are valuable towards understanding disorder effects in general devices using electrolyte gating.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-04-11T10:26:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "transport measurements",
      "evaluation",
      "ionic liquid",
      "upper limit",
      "disorder effects"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}