Improved blue light-emitting polymeric device by the tuning of drift mobility and charge balance
نویسندگان
چکیده
منابع مشابه
Influences of Device Architectures on Characteristics of Organic Light-Emitting Devices Incorporating Ambipolar Blue-Emitting Ter(9,9-diarylfluorenes)
In this article, we report the studies of various device architectures of organic lightemitting devices (OLEDs) incorporating highly efficient blue-emitting and ambipolar carriertransport ter(9,9-diarylfluorene)s, and their influences on device characteristics. The device structures investigated include single-layer devices and multilayer heterostructure devices employing the terfluorene as one...
متن کاملTuning emission colors from blue to green in polymeric light-emitting diodes fabricated using polyfluorene blends.
The photo- and electroluminescent properties of single-layer two-component blends composed of one blue emitter polymer and one green emitter polymer were studied. The blue emitter, poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-co-(9,9-di-{5'-pentanyl}-fluorenyl-2,7-diyl)] (PFOFPen), was used as the matrix, and the green emitter, poly[(9,9-dihexylfluorenyl-2,7-diyl)-alt-co-(bithiophene)] (F6T2), was ...
متن کاملCharge carrier mobility of mixed-layer organic light-emitting diodes
The authors report the investigation of the charge transport behaviors in mixed thin films of N ,N -diphenyl-N ,N -bis 1-napthyl -1 ,1 -biphenyl-4 ,4 -diamine and tris 8-hydroxyquinoline aluminum. The extracted electron and hole drift mobility were found to be sensitive to the compositional fraction and interpreted by energy levels, charge mobilities of neat compounds, and microscopic networks ...
متن کاملBlue Light Emitting Polyphenylene Dendrimers with Bipolar Charge Transport Moieties.
Two light-emitting polyphenylene dendrimers with both hole and electron transporting moieties were synthesized and characterized. Both molecules exhibited pure blue emission solely from the pyrene core and efficient surface-to-core energy transfers when characterized in a nonpolar environment. In particular, the carbazole- and oxadiazole-functionalized dendrimer (D1) manifested a pure blue emis...
متن کاملPolymeric anodes for improved polymer light-emitting diode performance
We have studied polyaniline and polyethylenedioxythiophene transparent electrodes for use as hole-injecting anodes in polymer light emitting diodes. The anodes were doped with a variety of polymer and monomer-based acids and cast from either water or organic solvents to determine the effect of the dopant and solvent on the hole-injection properties. We find that the anodes with polymeric dopant...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2004
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.1651644