1 Ocak 2020 Dergi makalesi Açık Erişim

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

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  <dc:creator>Mucur, Selin Piravadili</dc:creator>
  <dc:creator>Canimkurbey, Betul</dc:creator>
  <dc:creator>Korkmaz, Ayse Demir</dc:creator>
  <dc:date>2020-01-01</dc:date>
  <dc: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</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/91211</dc:identifier>
  <dc:identifier>oai:zenodo.org:91211</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>LIGHT &amp; ENGINEERING 28(2) 95-105</dc:source>
  <dc:title>MAGNETIC FIELD IMPLEMENTING INTO THE ELECTROLUMINESCENCE OF OLED DEVICES DOPED WITH CoFe2O4 NANOPARTICLES</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>