Low voltage driving red phosphorescent organic light-emitting devices

摘要

We have developed low voltage driving red phosphorescent organic light-emitting devices using a new electron transport layer. Ir(piq)_3 and CBP were used as a phosphorescent dopant and an emission host, respectively. The device exhibits a luminance of 1000 cd/m~2 at a voltage of 2.8 V. This high luminance at low voltage results from a high electron conduction behavior of the new electron transport layer.