{
  "abstract": "Solid-state triplet-triplet annihilation upconversion offers a compelling route to harvest sub-bandgap photons to increase the efficiency of photovoltaics, but low sensitizer doping required to suppress non-radiative aggregation quenching severely restricts light absorption. Here, we present a dual-resonator planar silver microcavity housing a thermally co-evaporated rubrene:palladium phthalocyanine (PdPC) active layer designed to simultaneously enhance triplet-sensitizer absorption and out-couple upconverted emission. By aligning a dispersive cavity mode with the PdPC absorption peak at $32^\\circ$, we achieve a 12-fold enhancement in absorptance at 665 nm. This absorption boost, combined with directional outcoupling through a second cavity mode, outweighs cavity-induced reabsorption losses to yield a 22-fold peak and 4.5-fold integrated enhancement in detected upconversion emission. Overall, this work highlights the potential of microcavity integration to substantially enhance solid-state upconversion performance across low-intensity optoelectronic applications.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.19209",
  "author_total": 5,
  "authors": [
    {
      "name": "Robert H. Gordon"
    },
    {
      "name": "Rachel C. Kilbride"
    },
    {
      "name": "Michael Hutton"
    },
    {
      "name": "Jenny Clark"
    },
    {
      "name": "Robert D. J. Oliver"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4ybazv65g84b9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.19209",
  "fulltext_url": null,
  "id": "4ybazv65g84b9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.19209",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.chem-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2505|Luminescence Properties of Advanced Materials"
    ]
  ],
  "openalex": "W7221938061",
  "pdf_url": "https://arxiv.org/pdf/2610.19209",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4ybazv65g84b9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2610.19209",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.19209"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Dual-Resonator Organic Microcavities for Triplet-Triplet Annihilation Upconversion",
  "title_text": "Dual-Resonator Organic Microcavities for Triplet-Triplet Annihilation Upconversion",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/4ybazv65g84b9",
  "venue": "arXiv",
  "versions": []
}