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A novel red-emitting binuclear platinum complex (dfppy)2Pt2(C8OXT)2 was synthesized and characterized,in which dfppy represents 2-(4’,6’-difluorophenyl)pyridinato unit and C8OXT is abbreviated for 5-(4-octyloxyphenyl)-1,3,4-oxadiazole-2-thiol as a bridging ancillary ligand.Its photophysical,electrochemical and electroluminescent characteristics were primarily studied.The made single-emissive-layer (SEL) polymer light-emitting devices using (dfppy)2Pt2(C8OXT)2 as emitter exhibited a saturated red emission peaked at 620nm.The best device performances were obtained in the device at 8wt% dopant concentration,with a maximum external quantum efficiency of 8.4%,a current efficiency of 4.2cd/A and brightness of 3228cd/m2.This work provides an effective approach to obtain high-efficiency red emission through construction of new binuclear platinum complex and its doped SEL devices.
A novel red-emitting binuclear platinum complex (dfppy) 2Pt2 (C8OXT) 2 was synthesized and characterized in which dfppy represents 2- (4 ’, 6’-difluorophenyl) pyridinato unit and C8OXT is abbreviated for 5- (4-octyloxyphenyl) -1,3,4-oxadiazole-2-thiol as a bridging ancillary ligand. Its photophysical, electrochemical and electroluminescent characteristics were evaluated by the made single-emissive-layer (SEL) polymer light- emitting devices using (dfppy) 2Pt2 C8OXT) 2 as emitter exhibited a saturated red emission peaked at 620 nm. The best device performances were obtained in the device at 8 wt% dopant concentration, with a maximum external quantum efficiency of 8.4%, a current efficiency of 4.2 cd / A and brightness of 3228 cd / m2.This work provides an effective approach to obtain high-efficiency red emission through construction of new binuclear platinum complex and its doped SEL devices.