Organic interlayer for high power efficiency in organic light-emitting diodes

▶ This work reports low driving voltage in organic light-emitting diodes using organic interlayer. ▶ The driving voltage of phosphorescent organic light emitting diodes was reduced by the organic interlayer. ▶ A high power efficiency of 73.3 lm/W was achieved in the green phosphorescent organic light emitting diodes using the organic interlayer.