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...
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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.
The cationic polyurethane/CeO 2 nanocomposite dispersion has been synthesiz ed by adding ceria organosol to pre-polymer of polyurethane and then adding neutralization reagent and water to give an emulsion. FTIR analys...
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The cationic polyurethane/CeO 2 nanocomposite dispersion has been synthesiz ed by adding ceria organosol to pre-polymer of polyurethane and then adding neutralization reagent and water to give an emulsion. FTIR analysis shows blue shift of the absorpsion band of CeO 2 . TEM micrograph shows that CeO 2 nano- particles ar e uniformly dispersed in polyurethane. Polyurethane/CeO 2 nanocomposite has high absorption at the region lower 350 nm.
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