{
  "id": "cond-mat/0701729",
  "version": "v1",
  "published": "2007-01-29T22:00:50.000Z",
  "updated": "2007-01-29T22:00:50.000Z",
  "title": "Exciton Ionization, Franz-Keldysh and Stark Effects in Carbon Nanotubes",
  "authors": [
    "Vasili Perebeinos",
    "Phaedon Avouris"
  ],
  "comment": "12 pages, 5 figures, Nano Letters (2007)",
  "journal": "Nano Lett. 7, 609 (2007)",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We calculate the optical properties of carbon nanotubes in an external static electric field directed along the tube axis. We predict strong Franz-Keldysh oscillations in the first and second band-to-band absorption peaks, quadratic Stark effect of the first two excitons, and the field dependence of the bound exciton ionization rate for a wide range of tube chiralities. We find that the phonon assisted mechanism dominates the dissociation rate in electro-optical devices due to the hot optical phonons. We predict a quadratic dependence of the Sommerfeld factor on the electric field and its increase up to 2000% at the critical field of the full exciton dissociation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-01-29T22:00:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "carbon nanotubes",
      "bound exciton ionization rate",
      "external static electric field",
      "second band-to-band absorption peaks"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1021/nl0625022",
      "journal": "Nano Letters",
      "year": 2007,
      "month": "Mar",
      "volume": 7,
      "number": 3,
      "pages": 609
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007NanoL...7..609P"
    }
  }
}