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

摘要

PURPOSE: A poly norbornene polymer - containing green phosphorescence host material and a green phosphorescence organic light-emitting device using the same are provided to display excellent external quantum efficiency and power efficiencies. CONSTITUTION: A green phosphorescent host material includes vinyl-type poly norbornene polymer represented by chemical formula 1. Here, R indicates functional group of below chemical formula 1 -a, 1 -b, 1 -c or 1 -d. The vinyl-type poly norbornene polymer is manufactured by vinyl addition polymerization of norbornene monomer. The green phosphorescence organic light emitting diode comprises positive electrode, negative electrode, and a light emitting layer between both electrodes. The host material is included in the light-emitting layer.