Shin, Seongbeom Kim, Jungyoon Kim, Young-Hwan Kim, Seong-Il 2024-01-20T12:03:10Z 2024-01-20T12:03:10Z 2021-09-04 2013-07 1567-1739 https://pubs.kist.re.kr/handle/201004/127932 Graphene films are one of the most favorable candidates for next generation transparent conductive electrodes (TCEs) for electrical devices, because of its unique electronic structure. Furthermore, an optical transparency of graphene films surpasses a transparency of conventional TCE such as indium tin oxide (ITO). However, actual graphene anode for OLEDs and OPVs has several problems owing to its low work function and high sheet resistance. Here, we have demonstrated enhanced performance of OLEDs by using hybrid anodes composed of graphene and conducting polymer (poly(3,4-ethylenedioxythiophene) with poly(styrenesulfonic) (PEDOT:PSS)), which can overcome low work function and high sheet resistance. PEDOT:PSS plays a role in improving the conductivity and forming a work function stairs for smooth hole injection property. As a result, we achieved enhanced OLED efficiencies using graphene-conducting polymer hybrid anode. These results are superior to that in efficiencies of graphene anode devices. Our experimental results indicate that graphene and conducting polymer would be next generation and alternative TCEs for OLED and OPV. (C) 2013 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ELECTRODES Enhanced performance of organic light-emitting diodes by using hybrid anodes composed of graphene and conducting polymer Article 10.1016/j.cap.2013.01.016 1 CURRENT APPLIED PHYSICS, v.13, pp.S144 - S147 CURRENT APPLIED PHYSICS 13 S144 S147 scie scopus kci 000323140300028 2-s2.0-84890546344 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article; Proceedings Paper ELECTRODES Transparent conductive electrode Graphene Conducting polymer OLED