Improved efficiency of indium-tin-oxide-free organic light-emitting devices using PEDOT:PSS/graphene oxide composite anode |
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| Affiliation: | 1. School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education, Cheonan 330-708, Republic of Korea;2. Advanced Technology Research Team, Youlchon Chemical, Co., Ltd, Seoul 156-709, Republic of Korea;1. The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center (MAM), Materials Institute, PK.54, 41470 Gebze, Kocaeli, Turkey;2. Gebze Technical University, Department of Physics Gebze, 41400 Kocaeli, Turkey;3. The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center (MAM), Genetic Engineering and Biotechnology Institute, Enzyme and Microbial Biotechnology Group, PK.21, 41470 Gebze, Kocaeli, Turkey;1. School of Physical Science and Technology, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, PR China;2. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195-2120, United States;3. School of Science, Key Laboratory of Ecophysics, Shihezi University, Xinjiang 832003, PR China |
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| Abstract: | 
We have demonstrated an indium-tin-oxide free organic light-emitting device (OLED) with improved efficiency by doping poly (3,4-ethylene dioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) with graphene oxide (GO) as a composite anode. In comparison with a pure PEDOT:PSS anode, 55% enhancement in efficiency has been obtained for the OLEDs based on the PEDOT:PSS/GO composite anode at an optimal condition. The PEDOT:PSS/GO composite anode shows a lower hole-injection barrier, which contributes to the improved device efficiency. Moreover, both high transmittance and good surface morphology similar to that of the pure PEDOT:PSS film also contribute to the enhanced efficiency. It is obvious that composite anode will generally be applicable in organic optoelectronic devices which require smooth and transparent anode. |
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| Keywords: | Organic light-emitting devices Graphene oxide PEDOT:PSS Composite anode |
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