{
  "id": "cond-mat/0505533",
  "version": "v3",
  "published": "2005-05-21T11:56:26.000Z",
  "updated": "2006-01-12T13:42:16.000Z",
  "title": "Space-Charge-Limited Current Fluctuations in Organic Semiconductors",
  "authors": [
    "A. Carbone",
    "B. K. Kotowska",
    "D. Kotowski"
  ],
  "comment": "corrected proofs",
  "journal": "Phys. Rev. Lett. 95, 236601 (2005)",
  "doi": "10.1103/PhysRevLett.95.236601",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "Low-frequency current fluctuations are investigated over a bias range covering {\\em ohmic}, {\\em trap-filling} and {\\em space-charge-limited current} regimes in polycrystalline polyacenes. The relative current noise power spectral density ${\\cal S}(f)$ is constant in the {\\em ohmic} region, steeply increases at the {\\em trap-filling transition} region and decreases in the {\\em space-charge-limited-current} region. The {\\em noise peak} at the {\\em trap-filling transition} is accounted for within a {\\em continuum percolation model}. As the quasi-Fermi level crosses the trap level, intricate insulating paths nucleate within the ohmic matrix, determining the onset of non-equilibrium conditions at the interface between the insulating and conducting phase. The {\\em noise peak} is written in terms of the free and trapped charge carrier densities.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2006-01-12T13:42:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "space-charge-limited current fluctuations",
      "organic semiconductors",
      "current noise power spectral density",
      "relative current noise power spectral",
      "noise peak"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}