Chengfeng Qiu

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Praseodymium oxide (Pr/sub 2/O/sub 3/) coated platinum (Pt) was investigated as a composite hole-injection layer for "top-emitting" organic light-emitting diodes (OLEDs) based on copper (II) phthalocyanine-N, N'-diphenyl-N, N' bis(3-methylphenyl-1, 1'-biphenyl-4, 4'-diamine-tris-8-hydroxyquinoline aluminum. Aluminum was used as the current-carrying and(More)
A new silole derivative, 1,2,3,4,5-pentaphenyl-1-(8-phenyl-1,7-octadiynyl)silole, is synthesized, characterized, and used as the electron-transport/emission layers in organic light-emitting diodes. Blue emission at 492 nm is observed, with a maximum luminance of 10 460 cd/m/sup 2/ at 18 V. The respective maximum current and power efficiencies are 8.47 cd/A(More)
The performance of top-emitting organic light-emitting diodes depends not just on the choice of the transparent cathodes but also on their techniques of formation. Compared to the damage induced by radio frequency sputtering of indium-tin oxide cathode, that induced by DC sputtering was verified to be less severe and relatively independent of the sputtering(More)
The characteristics of organic light-emitting diodes depend critically on the arrangement and choice of the constituent organic layers. Diodes constructed using poly(vinylcarbazole) doped with phosphorescent fac tris(2-phenylpyridine) iridium (III) [Ir(ppy)/sub 3/] as the polymer hole-transport layers and aluminum (III) bis(2-methyl-8-quinolinato)(More)
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