Blue phosphorescent host material comprising vinyl-type polynorbornene and blue phosphorescent organic light-emitting diode using the same

摘要

The invention The present invention is a blue phosphorescent host material comprising the norbornene polymer and the vinyl-type poly this Using relates to a blue phosphorescent organic light emitting element, a poly vinyl norbornene polymer of the type according to the present invention (vinyl-type polynorbornene) the R group is excellent fairness poly norbornene skeleton (backbone) and combined, and a common organic solvent (e. g. chloroform, dichloromethane, tetrahydrofuran, and is very soluble at room temperature in chlorobenzene), high decomposition temperature (T _{d5 & 440 ) and the glass transition temperature (Tg 268 ) to have high heat resistance and represents about 3.00 eV and with a high triplet energy of about -5.5 eV to about -2.0 eV HOMO and the LUMO of the blue light-emitting material as shown, so it is suitable. Therefore, in the manufacture of organic light emitting devices, manufactured using the conventional wet process blue phosphorescent organic light-emitting device with excellent external quantum efficiency compared to the same or higher ( EQE ) and power efficiency ( PE ) exhibits a device performance such as, may be useful as a blue phosphorescent host materials that can be used a wet process. ;}