1 Ocak 2021 Dergi makalesi Açık Erişim

Gunes, Ummugulsum; Bag Celik, Esra; Akgul, Cevahir C.; Koc, Mehmet; Ameri, Mohsen; Uzuner, Bahri E.; Ghasemi, Milad; Sahiner, Mehmet C.; Yildiz, Ilker; Kaya, Hava Z.; Yerci, Selcuk; Gunbas, Gorkem

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  "@id": 235600, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Gunes, Ummugulsum"
    }, 
    {
      "@type": "Person", 
      "name": "Bag Celik, Esra"
    }, 
    {
      "@type": "Person", 
      "name": "Akgul, Cevahir C."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle East Tech Univ, METU GUNAM Ctr, TR-06800 Ankara, Turkey", 
      "name": "Koc, Mehmet"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle East Tech Univ, METU GUNAM Ctr, TR-06800 Ankara, Turkey", 
      "name": "Ameri, Mohsen"
    }, 
    {
      "@type": "Person", 
      "name": "Uzuner, Bahri E."
    }, 
    {
      "@type": "Person", 
      "name": "Ghasemi, Milad"
    }, 
    {
      "@type": "Person", 
      "name": "Sahiner, Mehmet C."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle East Tech Univ, Cent Lab, TR-06800 Ankara, Turkey", 
      "name": "Yildiz, Ilker"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Middle East Tech Univ, METU GUNAM Ctr, TR-06800 Ankara, Turkey", 
      "name": "Kaya, Hava Z."
    }, 
    {
      "@type": "Person", 
      "name": "Yerci, Selcuk"
    }, 
    {
      "@type": "Person", 
      "name": "Gunbas, Gorkem"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "Perovskite surface treatment with additives has been reported to improve charge extraction, stability, and/or surface passivation. In this study, treatment of a 3D perovskite ((FAPbI(3))(1-)(x)(MAPbBr(3))(x)) layer with a thienothiophene-based organic cation (TTMAI), synthesized in this work, is investigated. Detailed analyses reveal that a 2D (n = 1) or quasi-2D layer does not form on the PbI2-rich surface 3D perovskite. TTMAI-treated 3D perovskite solar cells (PSCs) fabricated in this study show improved fill factors, providing an increase in their power conversion efficiencies (PCEs) from 17% to over 20%. It is demonstrated that the enhancement is due to better hole extraction by drift-diffusion simulations. Furthermore, thanks to the hydrophobic nature of the TTMAI, PSC maintains 82% of its initial PCE under 15% humidity for over 380 h (the reference retains 38%). Additionally, semitransparent cells are demonstrated reaching 17.9% PCE with treated 3D perovskite, which is one of the highest reported efficiencies for double cationic 3D perovskites. Moreover, the semitransparent 3D PSC (TTMAI-treated) maintains 87% of its initial efficiency for six weeks (>1000 h) when kept in the dark at room temperature. These results clearly show that this study fills a critical void in perovskite research where highly efficient and stable semitransparent perovskite solar cells are scarce.", 
  "headline": "A Thienothiophene-Based Cation Treatment Allows Semitransparent Perovskite Solar Cells with Improved Efficiency and Stability", 
  "identifier": 235600, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "A Thienothiophene-Based Cation Treatment Allows Semitransparent Perovskite Solar Cells with Improved Efficiency and Stability", 
  "url": "https://aperta.ulakbim.gov.tr/record/235600"
}