{
  "abstract": "Long-lasting room-temperature phosphorescence (RTP) from organic molecules bearing lone-pair-containing heteroatoms has recently emerged. However, designing lone-pair-free molecules with \"tunable RTP\" remains challenging. Herein, we present \"fine-tunable RTP\" from boron-containing regioisomers (1-4), that exhibit efficient orange-to-green RTP emission (600 to 515 nm) and ΦPh% (1.8 to 6.7) with delayed lifetimes ranging from 27 to 302 ms in the molecularly dispersed state (1 wt% in poly(methyl methacrylate)), indicating the regulation of triplet dynamics by the relative positions of boron moieties. These compounds have been explored for advanced multi-level anti-counterfeiting applications. Interestingly, the dielectric constant of these molecules ranges from 2.5 to 4.6, indicating both high- and low-k values. Incorporation of these regioisomers on the SiO2 dielectric layer as an interfacial layer enhances the field effect mobility values by up to one order, reaching values as high as 0.1 cm2 V-1 s-1 (p-type) and 0.2 cm2 V-1 s-1 (n-type). This study opens a new platform for developing metal- and lone-pair-free, tunable RTP materials with attractive dielectric properties.",
  "abstract_shown": true,
  "affiliations": [
    "Tata Institute of Fundamental Research Hyderabad-500046 India vc@tifrh.res.in.",
    "Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore-560012 India thilagar@iisc.ac.in.",
    "Department of Chemistry, Indian Institute of Technology Tirupati-517 619 India.",
    "Nanoelectronics and Device Physics Lab, School of Physical Sciences, National Institute of Science Education and Research, An OCC of HBNI Bhubaneswar Odisha-752050 India satyaprasad@niser.ac.in."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Ramar Arumugam",
      "orcid": "0000-0002-6580-4830"
    },
    {
      "affs": [
        1
      ],
      "name": "Akkarakkaran Thayyil Muhammed Munthasir",
      "orcid": "0009-0004-3057-0482"
    },
    {
      "affs": [
        2
      ],
      "name": "Pagidi Sudhakar",
      "orcid": "0000-0001-6856-1072"
    },
    {
      "affs": [
        3
      ],
      "name": "Indrajit Mondal",
      "orcid": "0009-0007-9470-4402"
    },
    {
      "affs": [
        1
      ],
      "name": "Loganathan Gayathri",
      "orcid": "0009-0008-4929-9433"
    },
    {
      "affs": [
        3
      ],
      "name": "Satyaprasad P Senanayak",
      "orcid": "0000-0002-8927-685X"
    },
    {
      "affs": [
        1
      ],
      "name": "Pakkirisamy Thilagar",
      "orcid": "0000-0002-4113-1299"
    },
    {
      "affs": [
        0
      ],
      "name": "Vadapalli Chandrasekhar",
      "orcid": "0000-0003-1968-2980"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ep4k68smqps6p.bib",
  "cited_by": 0,
  "doi": "10.1039/d6sc05964c",
  "fulltext_url": "https://europepmc.org/articles/PMC13714925",
  "id": "ep4k68smqps6p",
  "issns": [
    "2041-6520",
    "2041-6539"
  ],
  "landing_url": "https://europepmc.org/article/MED/42953642",
  "language": "eng",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "openalex",
      "2505|Luminescence and Fluorescent Materials"
    ]
  ],
  "openalex": "W7223117967",
  "pdf_url": "https://europepmc.org/articles/PMC13714925?pdf=render",
  "pmcid": "PMC13714925",
  "pmid": "42953642",
  "published": "2026-10-21",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/ep4k68smqps6p.ris",
  "sources": [
    {
      "first_seen": "2026-10-31T00:20:41Z",
      "native_id": "MED:42953642",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42953642"
    },
    {
      "first_seen": "2026-11-01T12:22:20Z",
      "native_id": "PMC13714925",
      "source": "pmc",
      "url": "https://doi.org/10.1039/d6sc05964c"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Luminescence and Fluorescent Materials",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Regioisomer-dependent room-temperature phosphorescence and low-k dielectric properties of naphthalene-bridged organoboranes.",
  "title_text": "Regioisomer-dependent room-temperature phosphorescence and low-k dielectric properties of naphthalene-bridged organoboranes.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-01T12:22:20Z",
  "url": "https://research.draconitic.com/paper/ep4k68smqps6p",
  "venue": "Chemical science",
  "versions": []
}