Vol. 134

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Luminescence Enhancement of Oled Performance by Doping Colloidal Magnetic FE3O4 Nanoparticles

By Mahmut Kus, Faruk Ozel, Nurhan Mehmet Varal, and Mustafa Ersoz
Progress In Electromagnetics Research, Vol. 134, 509-524, 2013


We report synthesis of magnetic Fe3O4 nanoparticles (MNPs) based on two phase method and their application in organic light-emitting devices (OLEDs) as blend with emissive Polyfluorene (PFO) matrix. Two phase method allows to successively synthesizing oleic acid capped MPNs with 5-10 nm particle size. Colloidal MNPs can be easily mixed with emissive polymer solutions to obtain a blend for OLED application. The electroluminescence efficiency increases by doping with MNPs into emissive layer. Different dopant concentrations varied from 0.4% to 2% were monitored. It was observed that the electroluminescence increases up to 1% v/v doping ratio. The luminance of OLEDs increased from 15.000 cd/m² to 24.000 cd/m² in comparison pristine device with 1% MNP doped device.


Mahmut Kus, Faruk Ozel, Nurhan Mehmet Varal, and Mustafa Ersoz, "Luminescence Enhancement of Oled Performance by Doping Colloidal Magnetic FE3O4 Nanoparticles," Progress In Electromagnetics Research, Vol. 134, 509-524, 2013.


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