Studies on Novel Blue Phosphorescent Organic Light-emitting Devices

Organic light-emitting devices (OLEDs) have attracted lots of attentions and have been subjects of intensive studies due to their great potential for plat panel display and solid state illumination applications. In this paper, we designed a new type of ultra-thin non doped organic blue electrophosphorescent devices of based on Firpic. We also studied that the impact of object layer thickness for single-layer ultra-thin non doped blue phosphor performance, and the performance of multilayer ultrathin non doped organic blue light device. We found that for the single ultra-thin non doped organic blue light device, with the FIrpic thickness increases, the photoluminescence peak blue shift gradually and occurred great changes. For the photoelectric performance of multilayer ultrathin non doped organic blue light device, we found that the device can be optimal performance with the maximum of 9.86 cd/A luminous efficiency, when the objectFIrpic layer is 3 layers, each layer FIrpic thickness of 1nm, subject layer thickness is 5 nm, and the thickness of the same luminous doped device compared to the performance of the proposed.