Transparent amorphous oxide semiconductors for organic electronics: Application to inverted OLEDs

Significance Organic electronics have vast potential due to the huge space for molecular design and the soft nature of organics. If the intrinsic advantages of inorganic semiconductors could be complementarily combined with organic semiconductors, exciting new avenues to practical applications would be opened. A key issue is how to realize efficient electron transfer between the cathode and the active organic layers. It is thus a challenge to develop excellent materials for electron injection and transport layers. This paper reports unique transparent amorphous oxide semiconductors for this purpose and successful fabrication of inverted organic light-emitting diode devices with high performance as an application.