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
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
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.
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.
LIANG Chun-Jun;ZOU Hui;HE Zhi-Qun;ZHANG Chun-Xiu;LI Dan;WANG Yong-Sheng. Polymer Light-Emitting Diode Using Conductive Polymer as the Anode Layer[J]. 中国物理快报, 2010, 27(9): 97801-097801.
LIANG Chun-Jun, ZOU Hui, HE Zhi-Qun, ZHANG Chun-Xiu, LI Dan, WANG Yong-Sheng. Polymer Light-Emitting Diode Using Conductive Polymer as the Anode Layer. Chin. Phys. Lett., 2010, 27(9): 97801-097801.
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