{
  "abstract": "Developing organic photodetectors (OPDs) that can detect in deep shortwave infrared (deep-SWIR) region (1.2–1.6 μm) is technologically important. Yet, the performance of the state-of-the-art deep-SWIR OPDs remains substantially limited. Herein, we report a selenium-integrated quinoidal small molecular acceptor, SeBz-4Cl, enabling highly sensitive deep-SWIR photodetection. Selenium incorporation enhances quinoidal character along the conjugated backbone of the molecules, thus expanding absorption approaching 1.5 μm. Moreover, SeBz-4Cl with strengthened intermolecular interactions led to an ideal film morphology, which reduced Urbach energy and favored charge dynamics. Under −1 V voltage bias, the SeBz-4Cl-based OPD achieved a low dark current density of 2.97 × 10−7 A cm−2 and an external quantum efficiency (EQE) of 7.8% at 1310 nm, together with a high specific detectivity (D*) exceeding 1011 Jones across 500–1400 nm, representing advanced deep-SWIR OPD performance. Furthermore, an optical communication system and a flexible imager under 1.2 μm illumination were demonstrated, highlighting potential of these deep-SWIR OPDs for information electronics and next generation optoelectronic applications in future.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Polymer Optoelectronic Materials and Devices, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China",
    "State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China",
    "School of New Energy, Ningbo University of Technology, Ningbo, China",
    "Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-Scale Scientific Facilities, School of Physical Sciences, Great Bay University, Dongguan, China",
    "Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China",
    "Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, China",
    "College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, China",
    "Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, China"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 24,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Wenkui Wei"
    },
    {
      "affs": [
        0
      ],
      "name": "Bingyan Yin"
    },
    {
      "affs": [
        0
      ],
      "name": "Yeye Wang"
    },
    {
      "affs": [
        1
      ],
      "name": "Jing Wang"
    },
    {
      "affs": [
        2
      ],
      "name": "Xia Zhou"
    },
    {
      "affs": [
        0
      ],
      "name": "Baoqi Wu",
      "orcid": "0000-0002-1908-6487"
    },
    {
      "affs": [
        3
      ],
      "name": "Zhaochen Lv"
    },
    {
      "affs": [
        4
      ],
      "name": "Fan-Cheng Kong"
    },
    {
      "affs": [
        5
      ],
      "name": "Xianqiang Xie",
      "orcid": "0000-0002-2019-3458"
    },
    {
      "affs": [
        6
      ],
      "name": "Wei Chen"
    },
    {
      "affs": [
        0
      ],
      "name": "Haozhe Feng"
    },
    {
      "affs": [
        0
      ],
      "name": "Yunhao Cao",
      "orcid": "0000-0002-8613-4864"
    },
    {
      "affs": [
        7
      ],
      "name": "Yuchuan Tian"
    },
    {
      "affs": [
        0
      ],
      "name": "Kangzhe Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Mingqun Yang"
    },
    {
      "affs": [
        1
      ],
      "name": "Yanjun Fang",
      "orcid": "0000-0003-4401-2313"
    },
    {
      "affs": [
        3
      ],
      "name": "Sha Liu",
      "orcid": "0000-0002-5496-5858"
    },
    {
      "affs": [
        4
      ],
      "name": "Philip C. Y. Chow",
      "orcid": "0000-0002-2373-503X"
    },
    {
      "affs": [
        5
      ],
      "name": "Guanghao Lu",
      "orcid": "0000-0001-7829-7308"
    },
    {
      "affs": [
        6
      ],
      "name": "Guangye Zhang",
      "orcid": "0000-0002-2750-7720"
    },
    {
      "affs": [
        7
      ],
      "name": "Junyu Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Fei Huang",
      "orcid": "0000-0001-9665-6642"
    },
    {
      "affs": [
        0
      ],
      "name": "Yong Cao",
      "orcid": "0000-0002-3845-7618"
    },
    {
      "affs": [
        0
      ],
      "name": "Chunhui Duan",
      "orcid": "0000-0002-6521-2149"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/67ke0wpmzjjye.bib",
  "cited_by": 0,
  "doi": "10.1038/s41467-026-78139-y",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13696687/",
  "id": "67ke0wpmzjjye",
  "issns": [
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  "landing_url": "https://doi.org/10.1038/s41467-026-78139-y",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
    [
      "openalex",
      "2208|Organic Electronics and Photovoltaics"
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  "openalex": "W7214230008",
  "pdf_url": "https://europepmc.org/articles/PMC13696687?pdf=render",
  "pmcid": "PMC13696687",
  "pmid": "42928368",
  "published": "2026-09-25",
  "publisher": "Nature Publishing Group",
  "ris": "https://research.draconitic.com/paper/67ke0wpmzjjye.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
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      "url": "https://doi.org/10.1038/s41467-026-78139-y"
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      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42928368"
    }
  ],
  "subjects": [],
  "title": "High-sensitivity deep shortwave infrared organic photodetectors enabled by selenium-integrated quinoidal molecular semiconductor",
  "title_text": "High-sensitivity deep shortwave infrared organic photodetectors enabled by selenium-integrated quinoidal molecular semiconductor",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:33:59Z",
  "url": "https://research.draconitic.com/paper/67ke0wpmzjjye",
  "venue": "Nature Communications",
  "versions": []
}