1 Ocak 2020 Dergi makalesi Açık Erişim

Mucur, Selin Piravadili; Canimkurbey, Betul; Korkmaz, Ayse Demir

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{
  "@context": "https://schema.org/", 
  "@id": 91211, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Sci & Technol Res Council Turkey TUBITAK, Marmara Res Ctr MAM, Mat Inst, Kocaeli, Turkey", 
      "name": "Mucur, Selin Piravadili"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Amasya Univ, Fac Arts & Sci, Dept Phys, Amasya, Turkey", 
      "name": "Canimkurbey, Betul"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Istanbul Medeniyet Univ, Dept Chem, Fac Sci, Istanbul, Turkey", 
      "name": "Korkmaz, Ayse Demir"
    }
  ], 
  "datePublished": "2020-01-01", 
  "description": "Cobalt ferrite magnetic nanoparticles (CoFe2O4 MNPs) were successfully prepared by citric acid-assisted sol-gel auto combustion method and used in emissive layer of organic light emitting diode (OLED). Dimensional, structural and magnetic properties of CoFe2O4 nanoparticles (NPs) were recearched and compared by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM). CoFe2O4 MNPs were utilized at various concentrations (0.5 wt%, 1.0 wt% and 2.0 wt%) in the emissive layer of the OLEDs. The luminance, current efficiency and the electroluminescence characteristics of the devices with and without CoFe2O4 MNPs were investigated. An external magnetic field, B-ext, has also been applied to the OLEDs doped with MNPs while under operation. Effects of MNPs on OLED characteristics under B-ext were studied thoroughly. In the tailored device architecture, poly (3,4-ethylenedioxythiophene): poly polystyrene sulphonate (PEDOT: PSS) and poly(2-methoxy-5-(2-ethyl-hexyloxy))-1,4-phenylene vinylene (MEH-PPV) were used as a hole transport layer (HTL) and an emissive layer respectively with ITO/PEDOT: PSS/ MEH-PPV: CoFe2O4/Ca/Al device architecture. The obtained results of the fabricated OLEDs were enhanced in the presence of CoFe2O4 NPs under B-ext due to providing density of states in the polymer matrices. The turn-on voltage was diminished", 
  "headline": "MAGNETIC FIELD IMPLEMENTING INTO THE ELECTROLUMINESCENCE OF OLED DEVICES DOPED WITH CoFe2O4 NANOPARTICLES", 
  "identifier": 91211, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "MAGNETIC FIELD IMPLEMENTING INTO THE ELECTROLUMINESCENCE OF OLED DEVICES DOPED WITH CoFe2O4 NANOPARTICLES", 
  "url": "https://aperta.ulakbim.gov.tr/record/91211"
}