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Bright blue electroluminescent devices have been fabricated using poly(N-vinylcarbazole) (PVK) doped with perylene as the emissive layer, poly(p-phenylenevinylene) (PPV) as the hole-transporting layer, 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1, 3,4-oxadiazole (PBD), tris(8-hydroxyquinoline) aluminum (Alq 3 ) as the electron-transporting layer, and Al as the cathode. A luminance of 700 cd/m...
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