{
  "id": "1502.05964",
  "version": "v1",
  "published": "2015-02-20T18:23:29.000Z",
  "updated": "2015-02-20T18:23:29.000Z",
  "title": "Influences of Exciton Diffusion and Exciton-Exciton Annihilation on Photon Emission Statistics of Carbon Nanotubes",
  "authors": [
    "Xuedan Ma",
    "Oleskiy Roslyak",
    "Juan G. Duque",
    "Xiaoying Pang",
    "Stephen K. Doorn",
    "Andrei Piryatinski",
    "David H. Dunlap",
    "Han Htoon"
  ],
  "comment": "15 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Pump-dependent photoluminescence imaging and 2nd order photon correlation studies have been performed on individual single-walled carbon nanotubes (SWCNTs) at room temperature that enable the extraction of both the exciton diffusion constant and the Auger recombination coefficient. A linear correlation between these is attributed to the effect of environmental disorder in setting the exciton mean free-path and capture-limited Auger recombination at this lengthscale. A suppression of photon antibunching is attributed to creation of multiple spatially non-overlapping excitons in SWCNTs whose diffusion length is shorter than the laser spot size. We conclude that complete antibunching at room temperature requires an enhancement of exciton-exciton annihilation rate that may become realizable in SWCNTs allowing for strong exciton localization.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-02-20T18:23:29.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "photon emission statistics",
      "exciton-exciton annihilation",
      "carbon nanotubes",
      "exciton diffusion",
      "2nd order photon correlation studies"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}