1 Ocak 2021 Dergi makalesi Açık Erişim

Altaf, Cigdem Tuc; Abdullayeva, Nazrin; Coskun, Ozlem; Kumtepe, Alihan; Yildiri, Ipek Deniz; Erdem, Emre; Liu, Maochang; Bozbey, Ali; Agar, Ertan; Sankir, Mehmet; Sankir, Nurdan Demirci

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  "@id": 237612, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "TOBB Univ Econ & Technol, Micro & Nanotechnol Grad Program, Sogutozu Caddesi 43 Sogutozu, TR-06560 Ankara, Turkey", 
      "name": "Altaf, Cigdem Tuc"
    }, 
    {
      "@type": "Person", 
      "affiliation": "TOBB Univ Econ & Technol, Micro & Nanotechnol Grad Program, Sogutozu Caddesi 43 Sogutozu, TR-06560 Ankara, Turkey", 
      "name": "Abdullayeva, Nazrin"
    }, 
    {
      "@type": "Person", 
      "affiliation": "TOBB Univ Econ & Technol, Micro & Nanotechnol Grad Program, Sogutozu Caddesi 43 Sogutozu, TR-06560 Ankara, Turkey", 
      "name": "Coskun, Ozlem"
    }, 
    {
      "@type": "Person", 
      "affiliation": "TOBB Univ Econ & Technol, Micro & Nanotechnol Grad Program, Sogutozu Caddesi 43 Sogutozu, TR-06560 Ankara, Turkey", 
      "name": "Kumtepe, Alihan"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkey", 
      "name": "Yildiri, Ipek Deniz"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkey", 
      "name": "Erdem, Emre"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China", 
      "name": "Liu, Maochang"
    }, 
    {
      "@type": "Person", 
      "affiliation": "TOBB Univ Econ & Technol, Dept Elect & Elect Engn, Sogutozu Caddesi 43 Sogutozu, TR-06560 Ankara, Turkey", 
      "name": "Bozbey, Ali"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Massachusetts Lowell, Dept Mech Engn, Energy Engn Grad Program, Lowell, MA 01854 USA", 
      "name": "Agar, Ertan"
    }, 
    {
      "@type": "Person", 
      "name": "Sankir, Mehmet"
    }, 
    {
      "@type": "Person", 
      "name": "Sankir, Nurdan Demirci"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "ZnO thin films in nanorod (NR) and nanoflower (NF) morphologies were used as photoelectrode scaffolds for efficient visible-light-driven photoelectrochemical (PEC) water splitting process, where their decoration with copper indium gallium sulfide (CIGS) and indium sulfide (In2S3) layers resulted in significant PEC performance enhancement. ZnO NF/CIGS/In2S3 photoelectrodes exhibited a remarkably high PEC efficiency (similar to 6.0% applied bias photon-to-current efficiency, 83% incident photon-to-current efficiency) due to the negligible dark current, while ZnO NR/CIGS/In2S3 generated a photocurrent density of 30.0 mA.cm(-2) at 0.4 V (vs Ag/AgCl), being one of the highest performances reported in the literature for copper-based chalcopyrite photoelectrodes so far. The interfacial photoelectrode-electrolyte charge transport dynamics, investigated via intensity-modulated photocurrent spectroscopy, exhibited a sevenfold increase in charge transfer efficiencies with a significant drop in surface recombination kinetics for ZnO NF after CIGS/In2S3 decoration. The obtained results show consistency with numerically modeled electric field distribution profiles and electron paramagnetic resonance results of ZnO NF, rationalizing the enhanced charge transfer rates for decorated samples and confirming the defect passivating nature of CIGS/In2S3.", 
  "headline": "Efficiency enhancement in photoelectrochemical water splitting: Defect passivation and boosted charge transfer kinetics of zinc oxide nanostructures via chalcopyrite/chalcogenide mix sensitization", 
  "identifier": 237612, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Efficiency enhancement in photoelectrochemical water splitting: Defect passivation and boosted charge transfer kinetics of zinc oxide nanostructures via chalcopyrite/chalcogenide mix sensitization", 
  "url": "https://aperta.ulakbim.gov.tr/record/237612"
}