【摘要】 通过氟化锂和铅共蒸,做成金属-绝缘体复合阴极,降低了阴极反射率,进而实现了高对比度有机电致发光器件(OLED)。对该高对比度器件的光学反射特性和电学特性进行了研究,并与传统的金属铝/氟化锂阴极器件进行了比较。该铅-氟化锂复合阴极的反射率只有18%,比相同厚度铝阴极的反射率降低了大约5倍,另外,该高对比度器件的电致发光特性与传统器件大致相当。更多还原

【Abstract】 A metal-insulator complex film made by co-evaporating metal Pb and transparent insulator LiF was tested as a low-reflecting cathode to realize high contrast organic light-emitting diodes(OLED).The optical reflectivity and electrical characteristic of the high contrast OLED were studied as compared with the device based on Al as the cathode.The reflectivity of the Pb-LiF complex cathode is 18% only,about 5 times lower than that of Al cathode.The experimental result shows that the high contrast and the conventional OLEDs are similar in terms of the electroluminescent property.更多还原