In the present work, efficient Solution-processed green light-emitting diodes based on a phosphorescent emitter with wide bandgap host are reported. A maximum efficiency of 25 cd/A was obtained using the green emitter tris[2-( p -tolyl)pyridine]iridium(III) blended with diphenyl-4-triphenylsilylphenyl-phosphine oxide as the emission layer. The maximum luminance exceeded 10,000 cd/m 2 , indicating that by simply blending a wide bandgap host with a phosphorescent emitter, efficient electroluminescence with a simplified device structure can be obtained.

中文翻译：

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具有宽带隙主体的溶液处理多层 OLED

在目前的工作中，报告了基于具有宽带隙主体的磷光发射器的高效溶液处理绿色发光二极管。使用与二苯基-4-三苯基甲硅烷基苯基-氧化膦混合的绿色发射器三[2-(对甲苯基)吡啶]铱(III)作为发射层获得了25cd/A的最大效率。最大亮度超过 10,000 cd/m 2 ，表明通过简单地将宽带隙主体与磷光发射体混合，可以获得具有简化器件结构的高效电致发光。