电致发光
材料科学
氧化铟锡
聚芴
有机发光二极管
光电子学
阳极
二极管
三聚体
量子效率
芴
光化学
聚合物
色度
阴极
量子产额
发光二极管
图层(电子)
荧光
光学
化学
电极
纳米技术
有机化学
复合材料
二聚体
物理
物理化学
作者
J.P Chen,G. Klaerner,J.-I Lee,D Markiewicz,V.Y Lee,Robert D. Miller,J. C. Scott
标识
DOI:10.1016/s0379-6779(99)00145-9
摘要
Single-, double- and triple-layer polymer light-emitting diodes (PLEDs) with indium-tin oxide (ITO) anodes and Ca cathodes were fabricated, based on solution processable and thermally cross-linkable hole transporting polyarylamine and blue luminescent polyfluorene; and an electron transporting oxadiazole trimer. Triple-layer PLEDs show the highest efficiency, brightness and saturation of blue emission. These results are interpreted in terms of charge injection balance and electron-hole recombination efficiency. The maximum external quantum efficiencies achieved (>1%) are comparable to the best polymer blue PLEDs.
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