{
  "id": "1410.2524",
  "version": "v1",
  "published": "2014-10-09T16:38:03.000Z",
  "updated": "2014-10-09T16:38:03.000Z",
  "title": "Field-enhanced recombination at low temperatures in an organic photovoltaic blend",
  "authors": [
    "S. Athanasopoulos",
    "N. C. Greenham",
    "R. H. Friend",
    "A. D. Chepelianskii"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report on the non-trivial field dependence of charge carrier recombination in an organic blend at low temperatures. A new microwave resonance technique for monitoring charge recombination in organic semiconductors at low temperatures is applied in bulk heterojunction P3HT:PCBM blends with results showing that an external electric field can in fact increase recombination. Monte Carlo simulations suggest that this contradiction to conventional wisdom relates to electron-hole pairs that are separated at donor-acceptor interfaces where the electric field acts in synergy with their Coulomb attraction. For this behaviour to occur a critical initial separation of 5nm between the carriers is required.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-10-09T16:38:03.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.63.-b",
      "73.50.Pz",
      "74.78.Na"
    ],
    "keywords": [
      "low temperatures",
      "organic photovoltaic blend",
      "field-enhanced recombination",
      "microwave resonance technique",
      "non-trivial field dependence"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.92.125301",
      "journal": "Physical Review B",
      "year": 2015,
      "month": "Sep",
      "volume": 92,
      "number": 12,
      "pages": 125301
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015PhRvB..92l5301A"
    }
  }
}