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Sulfur- and nitrogen-containing porous donor-acceptor polymers as real-time optical and chemical sensors

Kochergin, Yaroslav S.; Noda, Yu; Kulkarni, Ranjit; Škodáková, Klára; Tarábek, Ján; Schmidt, Johannes; Bojdys, Michael J.


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{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<p>Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices &ldquo;beyond silicon&rdquo;, yet, applications that make use of their &pi;-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-time optical and electronic sensors reversibly triggered and re-set by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence life-times as a function of &pi;-electron de-/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 eV to 0.76 eV and longer fluorescence life-times. In contrast, protonation of a donor-donor polymer does not affect its bandgap; however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence life-times. The design strategies highlighted in this study open new avenues towards useful chemical switches and sensors based on modular purely organic materials.</p>", 
  "license": "http://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
      "@id": "https://orcid.org/0000-0002-9060-6350", 
      "@type": "Person", 
      "name": "Kochergin, Yaroslav S."
    }, 
    {
      "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
      "@id": "https://orcid.org/0000-0003-0715-5534", 
      "@type": "Person", 
      "name": "Noda, Yu"
    }, 
    {
      "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
      "@id": "https://orcid.org/0000-0002-8251-1407", 
      "@type": "Person", 
      "name": "Kulkarni, Ranjit"
    }, 
    {
      "affiliation": "Institute of Organic Chemistry and Biochemistry of the CAS", 
      "@type": "Person", 
      "name": "\u0160kod\u00e1kov\u00e1, Kl\u00e1ra"
    }, 
    {
      "affiliation": "Institute of Organic Chemistry and Biochemistry of the CAS", 
      "@id": "https://orcid.org/0000-0003-0116-3824", 
      "@type": "Person", 
      "name": "Tar\u00e1bek, J\u00e1n"
    }, 
    {
      "affiliation": "Technische Universit\u00e4t Berlin", 
      "@type": "Person", 
      "name": "Schmidt, Johannes"
    }, 
    {
      "affiliation": "Humboldt-Universit\u00e4t zu Berlin", 
      "@id": "https://orcid.org/0000-0002-2592-4168", 
      "@type": "Person", 
      "name": "Bojdys, Michael J."
    }
  ], 
  "headline": "Sulfur- and nitrogen-containing porous donor-acceptor polymers as real-time optical and chemical sensors", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2019-10-01", 
  "url": "https://zenodo.org/record/3466483", 
  "keywords": [
    "Conjugated microporous polymers", 
    "donor-acceptor systems", 
    "acid-base sensor", 
    "fluorescence sensing", 
    "semiconductors"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1021/acs.macromol.9b01643", 
  "@id": "https://doi.org/10.1021/acs.macromol.9b01643", 
  "@type": "ScholarlyArticle", 
  "name": "Sulfur- and nitrogen-containing porous donor-acceptor polymers as real-time optical and chemical sensors"
}
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