Chen Shufen, Xie Wenfa, Huang Wei, Liu Shiyong
1Jiangsu Key Lab of Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China.
Opt Express. 2008 Jun 9;16(12):8868-75. doi: 10.1364/oe.16.008868.
Green top-emitting organic light-emitting devices based on tris-(8-hydroxyl-quinoline) aluminum are fabricated with a low reflective Sm/Ag cathode and a comparative Al/Ag cathode. An additional 2,9-dimethyl-4,7-diphenyl-1, 10-phenanthroline (BCP) layer, used as a light outcoupling layer, is deposited onto the SmAg cathode to improve device performances. The influence of different cathodes and the BCP layer on electrical and optical characteristics are investigated and discussed. It is worth mentioning that the introduction of the BCP layer not only enhances the brightness and the luminous efficiency but also improves the viewing angle and the pixel contrast ratio.
基于三（8-羟基喹啉）铝制备了具有低反射率Sm/Ag阴极和对比Al/Ag阴极的绿色顶部发光有机发光器件。将用作光出耦合层的额外的2,9-二甲基-4,7-二苯基-1,10-菲咯啉（BCP）层沉积在SmAg阴极上以改善器件性能。研究并讨论了不同阴极和BCP层对电学和光学特性的影响。值得一提的是，BCP层的引入不仅提高了亮度和发光效率，还改善了视角和像素对比度。
