Electroluminescence property of organic light emitting diode (OLED)

Gökdemir F. P., Özdemir O., Bulgurcuoğlu A. E., Kutlu K., Can N., Kavak P.

3rd International Advances in Applied Physics and Materials Science Congress, APMAS 2013, Antalya, Turkey, 24 - 28 April 2013, vol.1569, pp.364-371 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1569
  • Doi Number: 10.1063/1.4849295
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.364-371
  • Keywords: Admittance., Electroluminescence, Organic Light Emitting Diode
  • Yıldız Technical University Affiliated: Yes

Abstract

© 2013 AIP Publishing LLC.Transport properties of electrons and holes were investigated not only in a anthracene-containing poly(p-phenylene-ethynylene)- alt - poly(p-phenylene-vinylene) (PPE-PPV) polymer (AnE-PVstat) light emitting diodes (OLED) but also in an ITO/Ag/polymer/Ag electron and ITO/PEDOT:PSS/polymer/Au hole only devices. Mobility of injected carriers followed the Poole-Frenkel type conduction mechanism and distinguished in the frequency range due to the difference of transit times in admittance measurement. Beginning of light output took place at the turn-on voltage (or flat band voltage), 1.8 V, which was the difference of energy band gap of polymer and two barrier offsets between metals and polymer.