【摘 要】
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The performance of organic light-emitting diodes (OLEDs) with thick film is optimized.The alteative vana-dium oxide (V2O5) and N,N-di(naphthalene-1-yl)-N,N-diph
【机 构】
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School of Material Science and Engineering, Shanghai University, Jiading Campus, PO Box 815, Shangha
论文部分内容阅读
The performance of organic light-emitting diodes (OLEDs) with thick film is optimized.The alteative vana-dium oxide (V2O5) and N,N-di(naphthalene-1-yl)-N,N-diphenyl-benzidine (NPB) layers are used to enhance holes in the emissive region, and 4,7-dipheny-1,10-phenanthroline (Bphen) doped 8-tris-hydroxyquinoline alu-minium (Alq3) is used to enhance electrons is the emissive region, thus ITO/V2O5 (8nm)/NPB (52nm)/V2O5 (8nm)/NPB (52 nm)/Alq3 (30 and 45 nm)/Alq3:Bphen (30wt%, 30 and 45 nm)/LiF (1 nm)/Al (120nm) devices are fabricated.The thick-film devices show the tu-on voltage of about 3 V and the maximal power efficiency of 4.51m/W, which is 1.46 times higher than the conventional thin-film OLEDs.
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