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A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cells

Tountas, Marinos; Topal, Yasemin; Verykios, Apostolis; Soultati, Anastasia; Kaltzoglou, Andreas; Papadopoulos, Theodoros A.; Auras, Florian; Seintis, Kostas; Fakis, Mihalis; Palilis, Leonidas C.; Tsikritzis, Dimitris; Kennou, Stella; Fakharuddin, Azhar; Schmidt-Mende, Lukas; Gardelis, Spyros; Kus, Mahmut; Falaras, Polycarpos; Davazoglou, Dimitris; Argitis, Panagiotis; Vasilopoulou, Maria


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  "@context": "https://schema.org/", 
  "@id": 110488, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Tountas, Marinos"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Pamukkale Univ, Cal Vocat High Sch, TR-20700 Cal Denizli, Turkey", 
      "name": "Topal, Yasemin"
    }, 
    {
      "@type": "Person", 
      "name": "Verykios, Apostolis"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Soultati, Anastasia"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Kaltzoglou, Andreas"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Chester, Dept Nat Sci, Thornton Sci Pk, Chester CH2 4NU, Cheshire, England", 
      "name": "Papadopoulos, Theodoros A."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England", 
      "name": "Auras, Florian"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Patras, Dept Phys, Patras 26504, Greece", 
      "name": "Seintis, Kostas"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Patras, Dept Phys, Patras 26504, Greece", 
      "name": "Fakis, Mihalis"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Patras, Dept Phys, Patras 26504, Greece", 
      "name": "Palilis, Leonidas C."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Patras, Dept Chem Engn, Patras 26504, Greece", 
      "name": "Tsikritzis, Dimitris"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Patras, Dept Chem Engn, Patras 26504, Greece", 
      "name": "Kennou, Stella"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Konstanz, Dept Phys, D-78457 Constance, Germany", 
      "name": "Fakharuddin, Azhar"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Konstanz, Dept Phys, D-78457 Constance, Germany", 
      "name": "Schmidt-Mende, Lukas"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Athens, Phys Dept, Solid State Phys Sect, Athens 15784, Greece", 
      "name": "Gardelis, Spyros"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Selcuk Univ, Chem Engn Dept, TR-42075 Konya, Turkey", 
      "name": "Kus, Mahmut"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Falaras, Polycarpos"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Davazoglou, Dimitris"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Argitis, Panagiotis"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Natl Ctr Sci Res Demokritos, Inst Nanosci & Nanotechnol, Athens 15310, Greece", 
      "name": "Vasilopoulou, Maria"
    }
  ], 
  "datePublished": "2018-01-01", 
  "description": "Combining high efficiency and long lifetime under ambient conditions still poses a major challenge towards commercialization of polymer solar cells. Here we report a facile strategy that can simultaneously enhance the efficiency and temporal stability of inverted photovoltaic architectures. Inclusion of a silanolfunctionalized organic-inorganic hybrid polyoxometalate derived from a PW9O34 lacunary phosphotungstate anion, namely (nBu(4)N)(3)[PW9O34(tBuSiOH)(3)], significantly increases the effectiveness of the electron collecting interface, which consists of a metal oxide such as titanium dioxide or zinc oxide, and leads to a high efficiency of 6.51% for single-junction structures based on poly(3-hexylthiophene): indene-C60 bisadduct (P3HT: IC(60)BA) blends. The above favourable outcome stems from a large decrease in the work function, an effective surface passivation and a decrease in the surface energy of metal oxides which synergistically result in the outstanding electron transfer mediating capability of the functionalized polyoxometalate. In addition, the insertion of a silanol-functionalized polyoxometalate layer significantly enhances the ambient stability of unencapsulated devices which retain nearly 90% of their original efficiencies (T-90) after 1000 hours.", 
  "headline": "A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cells", 
  "identifier": 110488, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO2 cathode interlayers for highly efficient and extremely stable polymer solar cells", 
  "url": "https://aperta.ulakbim.gov.tr/record/110488"
}
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