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Ageing effect of treated ITO substrates on the performance of organic electroluminescent devices

机译：经过处理的ITO基板的时效对有机电致发光器件性能的影响

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Indium tin oxide (ITO) substrates were treated by oxygen plasma for organic light-emitting devices (OLEDs). Using the ITO substrates aged for various times as hole-injecting electrodes, the double-layered OLEDs were fabricated by vacuum evaporation process, and the ageing effect of treated ITO anodes on the performance of OLEDs was studied with respect to the electroluminescence lifetime, efficiency, luminance and driving voltage. Experimental results reveal that the luminescent and electrical characteristics of the OLEDs are strongly dependent on the properties of the ITO anodes used, and the ITO anodes aged for various times result in significant differences in device performance which become worse with the increment of the ageing time. The measurements of X-ray photoelectron spectroscopy (XPS) and contact angle show that the carbon concentration increases, the oxygen concentration decreases and water contact angle raises, and thereby the improved surface properties of ITO tend to decay, as the ageing time increases. It indicates that the change in the electroluminescent performance of the OLEDs is closely related to the changes in the chemical compositions and wettability of the ITO anodes.

机译：用氧等离子体处理氧化铟锡（ITO）基板，以用于有机发光器件（OLED）。使用经过多次老化的ITO衬底作为空穴注入电极，通过真空蒸镀工艺制备了双层OLED，并研究了经过处理的ITO阳极的老化对电致发光寿命，效率，效率的影响。亮度和驱动电压。实验结果表明，OLED的发光和电学特性在很大程度上取决于所使用的ITO阳极的性能，并且经过不同时间老化的ITO阳极会导致器件性能出现显着差异，随着老化时间的增加，该性能会变得越来越差。 X射线光电子能谱（XPS）和接触角的测量结果表明，碳浓度增加，氧浓度降低，水接触角增加，因此，随着老化时间的增加，改善的ITO表面性能趋于下降。这表明OLED的电致发光性能的变化与ITO阳极的化学组成和润湿性的变化密切相关。

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来源
《ICO20: Display Devices and Systems》|2005年|P.60300G.1-60300G.8|共8页
会议地点 Changchun(CN)
作者
Jiang Ya Dong; Zhong Zhi You; Wang Tao; Li Wei Zhi; Ji Xing Qiao;
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作者单位

School of Optoelectronic Information, University of Electronic Science Technology of China, Sichuan, Chengdu 610054, People's Republic of China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类光学仪器;计算技术、计算机技术;
关键词
organic light-emitting device; indium tin oxide; surface property; device performance;

机译：有机发光器件氧化铟锡表面性能器件性能;

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4. Ageing effect of treated ITO substrates on the performance of organic electroluminescent devices [C] . Jiang Ya Dong, Zhong Zhi You, Wang Tao, Conference on ICO . 2006

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Ageing effect of treated ITO substrates on the performance of organic electroluminescent devices

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