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Color-stable, ITO-free white organic light-emitting diodes with enhanced efficiency using solution-processed transparent electrodes and optical outcoupling layers

机译:使用溶液处理的透明电极和光学输出层,颜色稳定,无ITO的白色有机发光二极管具有更高的效率

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摘要

In this work, we demonstrate color-stable, ITO-free white organic light-emitting diodes (WOLEDs) with enhanced efficiencies by combining the high-conductivity conducting polymer PEDOT:PSS as transparent electrode and a nanoparticle-based scattering layer (NPSL) as the effective optical out-coupling layer. In addition to efficiency enhancement, the NPSL is also beneficial to the stabilization of electroluminescent spectra/colors over viewing angles. Both the PEDOT:PSS and the NPSL can be fabricated by simple, low-temperature solution processing. The integration of both solution-processable transparent electrodes and light extraction structures into OLEDs is particularly attractive for applications since they simultaneously provide manufacturing, cost and efficiency advantages. 
机译:在这项工作中,我们通过将高导电性导电聚合物PEDOT:PSS作为透明电极和基于纳米粒子的散射层(NPSL)结合使用,展示了颜色稳定,无ITO的白色有机发光二极管(WOLED),具有更高的效率。有效的光输出耦合层。除了提高效率外,NPSL还有利于在视角范围内稳定电致发光光谱/颜色。 PEDOT:PSS和NPSL均可通过简单的低温溶液处理来制造。将溶液可加工的透明电极和光提取结构集成到OLED中对于应用特别有吸引力,因为它们同时提供了制造,成本和效率方面的优势。

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