{
  "abstract": "Giant core/shell quantum dots (GQDs) offer advantages for optoelectronics, including suppressed blinking and reduced Auger recombination, yet thick-shell growth often requires laborious successive ion layer adsorption and reaction (SILAR) cycles. Here we demonstrate a chlorine-mediated controlled Ostwald ripening strategy that transforms NIR-emitting CdHgSe/CdS core/shell seed QDs into giant CdHgSe/CdHgSeS core/gradient-shell QDs in a single post-synthetic step. Seed QDs are prepared by growing a thin (~1.6-monolayer) CdS shell on CdHgSe alloy cores. Injection of CHCl₃ at 240 °C triggers rapid ripening, in which most seeds dissolve while a minor population grows into GQDs. During ripening, the band-edge absorption feature is strongly attenuated and absorption below ~610 nm increases markedly, whereas NIR emission remains centered near ~900 nm, yielding a large effective Stokes shift that can mitigate reabsorption in luminescent solar concentrators. HAADF-STEM/EDS and XRD support a compositionally graded shell, while mass spectrometry and numerical simulations are consistent with chlorine-modified surface chemistry and altered monomer solubility/surface tension that accelerate ripening. As a proof of concept, embedding the GQDs in PMMA affords a transparent luminescent solar concentrator prototype with retained NIR emission and favorable spectral overlap with silicon photovoltaics.",
  "abstract_shown": true,
  "affiliations": [
    "Division of Nanotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.",
    "DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea.",
    "Institute for Molecular Metabolism Innovation, Soonchunhyang University, Asan, Chungcheongnam-do, 31538, Republic of Korea.",
    "Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongsangbuk-Do, 37673, Republic of Korea.",
    "Division of Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, Gyeongsangbuk-Do, 37673, Republic of Korea.",
    "Department of Bioengineering, University of Illinois Urbana-Champaign (UIUC), Urbana, IL, 61801, USA.",
    "Holonyak Micro and Nanotechnology Laboratory, UIUC, Urbana, IL, 61801, USA.",
    "Cancer Center at Illinois, UIUC, Urbana, IL, 61801, USA.",
    "Carl R. Woese Institute for Genomic Biology, UIUC, Urbana, IL, 61801, USA.",
    "Department of Materials Science and Engineering, UIUC, Urbana, IL, 61801, USA.",
    "Carle Illinois College of Medicine, Urbana, IL, 61801, USA.",
    "Department of Energy Science and Engineering, DGIST, Daegu, 42988, Republic of Korea.",
    "Department of Robotics and Mechatronics Engineering, DGIST, Daegu, 42988, Republic of Korea.",
    "Department of Biomedical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, 01003, USA."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Gyudong Lee"
    },
    {
      "affs": [
        3
      ],
      "name": "Sanghwang Park",
      "orcid": "0009-0007-9890-4698"
    },
    {
      "affs": [
        3,
        4
      ],
      "name": "Jongcheol Seo",
      "orcid": "0000-0001-5844-4585"
    },
    {
      "affs": [
        5
      ],
      "name": "Wonseok Lee"
    },
    {
      "affs": [
        5,
        6,
        7,
        8
      ],
      "name": "Opeyemi H Arogundade"
    },
    {
      "affs": [
        5,
        6,
        7,
        8,
        9,
        10
      ],
      "name": "Andrew M Smith",
      "orcid": "0000-0002-0238-4816"
    },
    {
      "affs": [
        11
      ],
      "name": "Jongmin Choi"
    },
    {
      "affs": [
        1,
        12,
        13
      ],
      "name": "Hongsoo Choi",
      "orcid": "0000-0003-3613-2833"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Sung Jun Lim",
      "orcid": "0000-0002-4504-597X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2ts5db7cne25h.bib",
  "cited_by": 0,
  "doi": "10.1016/j.mtadv.2026.100968",
  "fulltext_url": "https://europepmc.org/articles/PMC13724084",
  "id": "2ts5db7cne25h",
  "issns": [
    "2590-0498"
  ],
  "landing_url": "https://europepmc.org/article/MED/42968830",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Article"
    ],
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      "openalex",
      "2505|Quantum Dots Synthesis And Properties"
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  "openalex": "W7208789719",
  "pdf_url": "https://europepmc.org/articles/PMC13724084?pdf=render",
  "pmcid": "PMC13724084",
  "pmid": "42968830",
  "published": "2026-08-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2ts5db7cne25h.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T03:21:04Z",
      "native_id": "MED:42968830",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42968830"
    },
    {
      "first_seen": "2026-11-04T12:22:36Z",
      "native_id": "PMC13724084",
      "source": "pmc",
      "url": "https://doi.org/10.1016/j.mtadv.2026.100968"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Quantum Dots Synthesis And Properties",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Facile synthesis of large-Stokes-shift giant CdHgSe/CdHgSeS near-infrared quantum dots via chlorine-mediated Ostwald ripening.",
  "title_text": "Facile synthesis of large-Stokes-shift giant CdHgSe/CdHgSeS near-infrared quantum dots via chlorine-mediated Ostwald ripening.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:20:47Z",
  "url": "https://research.draconitic.com/paper/2ts5db7cne25h",
  "venue": "Materials today. Advances",
  "versions": []
}