One fluoride tri-phenyl pyrazoline compound(FTPP) was synthesized. It showed an efficient photoluminescence(PL) ability to form a film. When FTPP was doped into poly(vinylcarbazole)(PVK) to form a film by spin-coating method, we found that the energy can be transferred from PVK to FTPP. Two types of organic eletroluminescent devices(OELDs) using PVK doping FTPP as emitting layer were fabricated, one was double layer device: ITO/PVK∶FTPP/PBD/Al and the other was three-layer device: ITO/PVK∶FTPP/PBD/Alq 3/Al. 1,3,4-Oxadiazole derivative(PBD) was used both as electron-transporting layer and as hole-barrier layer. 8-Hydroxyquinoline aluminum (Alq 3) was also used as electron-transporting layer. All devices could emit a blue light.
