High Efficiency Tandem Organic Light-emitting Diode Based on a New Charge Connecting Layer

A tandem organic light-emitting diode(OLED) with a new charge generation layer of m-MTDATA:MoO3 has been studied.Compare to the OLED with single electroluminescence unit,the tandem OLED shows an enhanced luminance and current efficiency by a factor of nearly 1.The maximum luminance and the maximum efficiency of tandem OLED are 83 210 cd/m2 and 30.06 cd/A,respectively.