The red tandem organic light-emitting diode based on an organic photovoltaic-type charge generation layer of carbon 60/copper (Ⅱ) phthalocyanine.
We considered both optical and electrical properties to decide the optimized structure of OPV-type CGL.
A comparison of tandem OLED with bulk heterojunction structure was fabricated, which is not better than the tandem OLED with OPV-type CGL.