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首页> 外文会议>Flexible Electronics 2004 -Materials and Device Technology >POLYMER ELECTRODES FOR FLEXIBLE ORGANIC LIGHT-EMITTING DEVICES
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POLYMER ELECTRODES FOR FLEXIBLE ORGANIC LIGHT-EMITTING DEVICES

机译：柔性有机发光器件的聚合物电极

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摘要

We report a high luminance and low operating voltage molecular organic light-emitting diode (MOLED) using a conducting polymer hole-injecting electrode (anode) on a plastic substrate. A dramatic improvement in the rectification ratio is observed upon the insertion of a buffer layer between the conducting polymer anode and the organic hole-transporting layer (HTL). Micro-shorts leading to a leakage current caused by the non-uniformity of the polymer film are greatly reduced. Atomic force microscope (AFM) images show a much smoother surface of the polymer anode/buffer layer relative to that of the bare polymer film. A slight increase (0.3eV ± 0.2eV) in the work function of the polymer anode upon the addition of the buffer layer is also measured. A simple method of patterning the conducting polymer electrode on various substrates including plastics is also reported. This approach conveniently provides finely patterned conducting polymer films with μm resolution while maintaining their intrinsic electrical and optical properties such as the surface sheet resistance and the optical transmittance.
机译：我们报告了在塑料基板上使用导电聚合物空穴注入电极（阳极）的高亮度和低工作电压分子有机发光二极管（MOLED）。在导电聚合物阳极和有机空穴传输层（HTL）之间插入缓冲层后，可以观察到整流比的显着提高。大大减少了由于聚合物膜的不均匀性导致的漏电流的微短路。原子力显微镜（AFM）图像显示，相对于裸露的聚合物膜，聚合物阳极/缓冲层的表面更加光滑。还测量了在添加缓冲层时聚合物阳极的功函数略有增加（0.3eV±0.2eV）。还报道了一种在包括塑料的各种基底上构图导电聚合物电极的简单方法。此方法可方便地提供具有μm分辨率的精细图案化的导电聚合物膜，同时保持其固有的电气和光学特性（如表面电阻和透光率）。

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