| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Polymer Light-Emitting Diode Using Conductive Polymer as the Anode Layer |
LIANG Chun-Jun1, ZOU Hui1, HE Zhi-Qun1, ZHANG Chun-Xiu2, LI Dan1, WANG Yong-Sheng1 |
| 1Key Laboratory of Luminescence and Optical Information (Ministry of Education), Beijing Jiaotong University, Beijing 100044 2Beijing Institute of Graphic Communication, Beijing 102600 |
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| Cite this article: |
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LIANG Chun-Jun, ZOU Hui, HE Zhi-Qun et al 2010 Chin. Phys. Lett. 27 097801 |
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Abstract The analysis based on series equivalent circuit indicates that the resistance of electrode layers is the major factor limiting the current density of polymer light-emitting diodes (PLEDs) at higher voltages. The conductivity of 790 S/cm for the PEDOT:PSS film is achieved by secondary doping. At a thickness of 240 nm, the sheet resistance of the polymer layer is 51 Ω/sq, which is comparable to that of ITO films. The current density and luminance of the PLEDs with the polymer anode layer is higher than the ITO anode device, suggesting that it is feasible to replace ITO anode with a highly conductive polymer in PLEDs.
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| Keywords:
78.60.Fi
72.80.Le
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Received: 02 June 2010
Published: 25 August 2010
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| PACS: |
78.60.Fi
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(Electroluminescence)
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72.80.Le
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(Polymers; organic compounds (including organic semiconductors))
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