{
  "id": "1902.06872",
  "version": "v1",
  "published": "2019-02-19T03:09:33.000Z",
  "updated": "2019-02-19T03:09:33.000Z",
  "title": "Signatures of defect-localized charged excitons in the photoluminescence of monolayer molybdenum disulfide",
  "authors": [
    "Andre Neumann",
    "Jessica Lindlau",
    "Manuel Nutz",
    "Aditya D. Mohite",
    "Hisato Yamaguchi",
    "Alexander Högele"
  ],
  "journal": "Phys. Rev. Materials 2, 124003 (2018)",
  "doi": "10.1103/PhysRevMaterials.2.124003",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study spatial photoluminescence characteristics of neutral and charged excitons across extended monolayer MoS$_2$ synthesized by chemical vapor deposition. Using two-dimensional hyperspectral photoluminescence mapping at cryogenic temperatures we identify regions with increased emission from charged excitons associated with both spin-orbit split valence subbands. Such regions are attributed to unintentional doping at defect sites with excess charge that bind neutral excitons to form defect-pinned trions. Our findings imply comparable timescales for the formation, relaxation, and radiative decay of $B$ trions, and add defect-localized $A$ and $B$ trions to the realm of photoexcited quasiparticles in layered semiconductors.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-02-19T03:09:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "monolayer molybdenum disulfide",
      "defect-localized charged excitons",
      "study spatial photoluminescence characteristics",
      "spin-orbit split valence subbands",
      "signatures"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}