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Efficient single layer yellow light emitting diodes made of a blend of a ladder-type Doly(p-phenylene) and polyalkylthiophene

机译:由梯型Doly(对亚苯​​基)和聚烷基噻吩的混合物制成的高效单层黄色发光二极管

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摘要

We present the realisation of efficient yellow polymer light emitting diodes (PLEDs), in a single layer configuration, which is of considerable interest because of the ease of production of the PLEDs. We found that the electrolumines- cence-quantum-efficiency of PLEDs made of a blend of a blue emitting laddertype poly(p-phenylene) (m-LPPP) and small amounts of an orange emitting poly(decyl-thiophene) (PAl0T) is significantly improved to 4.2/100 compared with PLEDs fabricated of pure m-LPPP (2/100). In this paper we compare electroluminescence efficiencies of PLEDs made of different concentrations of PAl0T in the polymer blend and discuss the observed aggregation effect, which alters the photophysical properties.
机译:我们提出了在单层配置中实现高效的黄色聚合物发光二极管(PLED)的方法,由于PLED的易于生产,引起了人们的极大兴趣。我们发现,由蓝色发光梯形聚对苯撑(m-LPPP)和少量橙色发光聚癸基噻吩(PAl0T)的混合物制成的PLED的电致发光量子效率为与纯m-LPPP(2/100)制造的PLED相比,显着提高到4.2 / 100。在本文中,我们比较了由聚合物共混物中不同浓度的PAl0T制成的PLED的电致发光效率,并讨论了观察到的聚集效应,该效应改变了光物理性质。

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