用10 %、15 %、20 % 3 种浓度(体积分数)的磷酸分别对ITO玻璃进行处理,四探针测试表明其面电阻基本不变,原子力显微镜观测到酸处理后的ITO表面形貌更加平坦,紫外-可见光光谱显示出磷酸处理几乎不影响可见光透过率;以之为基底制备了典型结构(ITO/TPD /Alq/Al)有机发光二极管(OLEDs),并对其光电性能进行了测试,结果表明在经过浓度为15 %的磷酸处理过的ITO玻璃上制备的OLEDs表现出最好的光电性能,其发光最大亮度和发光效率分别是未经酸处理的ITO上器件的近2倍.
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