{
  "annotation_id": "74968174-1a97-48a9-8597-475f46c991ec",
  "date_created": "2026-03-02T18:01:00.871000Z",
  "date_modified": "2026-03-02T18:01:00.871000Z",
  "file_hash": "f66ec43a05e27c792fc934ecaff76528e0e97b719b6859a6d943ec56905d286f",
  "private": false,
  "record": {
    "abstract": "The temperature-dependent photoluminescence (PL) spectra of zinc oxide (ZnO)\nnanocrystals deposited inside the ultraviolet (UV) opal were studied. ZnO was\ngrown in the voids between FCC packed silicon dioxide spheres using spray\npyrolysis under ultrasonic vibration in the solution containing a zinc nitrate\nprecursor. The ZnO nanoparticles inside opal matrix with UV photonic band-gap\nexhibit suppression of the excitonic emission and enhancement of the deep level\nemission. Suppression of the excitonic lines is due to the inhibition of\nspontaneous emission, while enhancement and broadening of the DL emission in\nthe green spectral region is due to Purcell effect. The infiltration of ZnO\ninside the photonic crystal may be a useful technique to increase its emission\nefficiency in the selected spectral region.",
    "arxiv_id": "physics/0508152",
    "authors": [
      "S. M. Abrarov",
      "Sh. U. Yuldashev",
      "T. W. Kim",
      "Y. H. Kwon",
      "T. W. Kang"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1016/j.optcom.2005.08.048",
    "journal_ref": "Opt. Commun. 259 (1) (2006) 378-384",
    "title": "Deep level emission of ZnO nanoparticles deposited inside UV opal",
    "url": "https://arxiv.org/abs/physics/0508152"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2e2e20d8-b540-4d64-bfd5-e826b048e29d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}