{
  "abstract": "Photon energies in the short-wave infrared (SWIR) beyond 1.4 μm enable access to vibrational-overtone signatures of O–H, C–H, and N–H bonds in pollutants and waste materials, offering an imaging-based nondestructive approach for environmental monitoring. However, current SWIR imaging technologies rely on costly epitaxial semiconductors incompatible with monolithic integration, limiting consumer-grade deployment. Here we report a cost-effective organic SWIR imager with response beyond 1.4 μm, integrating high-detectivity organic photodetectors (OPDs) with amorphous silicon thin-film transistors via solution processing. The developed highly-ordered SWIR organic semiconductors with (halogenated) thiophene-fused quinoid terminals exhibit ultra-narrow optical bandgaps of 0.68–0.94 eV and Urbach energies down to 23 meV. The SWIR OPDs achieve spectral response from 0.3 μm to 1.5–1.7 μm with responsivities up to ∼0.1 A W −1 and specific detectivities of 2.03–4.60 × 10 10 Jones at 1.4 μm. The active-matrix SWIR imagers achieve accurate oil-leak monitoring in simulated seawater (R 2 = 0.993–0.997) and reliable waste-textile classification (silhouette score = 0.824), demonstrating their capabilities in environmental monitoring.",
  "abstract_shown": true,
  "affiliations": [
    "Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.",
    "University of Chinese Academy of Sciences, Beijing 100049, China."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Yifei Geng",
      "orcid": "0009-0001-4228-7068"
    },
    {
      "affs": [
        0
      ],
      "name": "Tengfei Li",
      "orcid": "0000-0002-0501-1505"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhenzhen Zhang"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Huiqing Hou"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Yuze Lin",
      "orcid": "0000-0002-0325-3842"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/37ktpkx6xd505.bib",
  "cited_by": 0,
  "doi": "10.1126/sciadv.aeg4558",
  "fulltext_url": null,
  "id": "37ktpkx6xd505",
  "issns": [
    "2375-2548"
  ],
  "landing_url": "https://www.science.org/doi/10.1126/sciadv.aeg4558",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2208|Organic Electronics and Photovoltaics"
    ]
  ],
  "openalex": "W7220855995",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "American Association for the Advancement of Science (AAAS)",
  "ris": "https://research.draconitic.com/paper/37ktpkx6xd505.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "10.1126/sciadv.aeg4558",
      "source": "crossref",
      "url": "https://www.science.org/doi/10.1126/sciadv.aeg4558"
    }
  ],
  "subjects": [],
  "title": "Solution-processed organic infrared photodetectors operating beyond 1.4 μm for sensitive environmental monitoring",
  "title_text": "Solution-processed organic infrared photodetectors operating beyond 1.4 μm for sensitive environmental monitoring",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/37ktpkx6xd505",
  "venue": "Science Advances",
  "versions": []
}