用高锰酸钾处理ITO表面制备的白光OLED  

Preparation of White Organic Light-emitting Devices Using KnMnO_4 to Treat the ITO-coated Glass Surface

作　　者：王静[1] 田兆硕[1] 孙玉德[1] 孙正和[1] 张延超[1] 

机构地区：[1]哈尔滨工业大学(威海)信息光电子研究所,山东威海264209

出　　处：《半导体光电》2010年第3期353-355,366,共4页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(60668016);国家"863"计划资助项目(2007A12Z112);哈尔滨工业大学(威海)研究基金项目(HIT(WH)Y200802);四平市科技局计划项目(四科合字第20030017号)

摘　　要：采用多层结构制备了色纯度很好的白光有机电致发光器件(OLED)。将清洗后的ITO玻璃样片在质量分数为0.005%高锰酸钾溶液中进行超声处理15min。将处理后的ITO玻璃样片与没有经过高锰酸钾溶液处理的ITO玻璃样片,在同一条件下,采用同样的结构制备有机电致发光器件,结果表明,处理前后所制备的器件的性能发生了明显的改变,处理后的白光器件的效率提高了16%,亮度提高了近29%。White orgnic light-emitting devices（WOLED）with multi-layer structure and high color purity were prepared. In order to improve the efficiency of the devices,KMnO4 solution with the concentration of 0.005 Wt% was used to treat the indium tin oxide （ITO） anode for 15 minutes. WOLEDs with the same structure were fabricated with the ITO anode treated with KMnO4 solution and the untreated one respectively under the same conditions. A comparision was made between the two kinds of different WOLEDs. It is found that the device with the ITO anode treated with KMnO4 solution has many improvements such as a lower turn-on voltage,a 29% higher luminance,and a 16% higher efficiency.

关 键 词：有机电致发光器件 白光 高锰酸钾溶液 表面处理 

分 类 号：TN383.1[电子电信—物理电子学]