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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Polarized White Emission from Fluorene-Based Polymer Blends
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Polarized White Emission from Fluorene-Based Polymer Blends

机译：芴基聚合物共混物的偏振白色发射

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摘要

Three alternating co-polyfluorenes emitting primary red, green and blue (RGB) colors have been synthesized via a palladium-catalyzed Suzuki coupling reaction. All copolymers reveal good thermal stability and nematic liquid crystalline behavior. The polymers were fabricated to form a polarized electroluminescent device using poly(ethylene dioxythiophene)-poly(styrene sulfonicacid) (PEDOT-PSS) as an alignment layer. For the case of primary colors, a host-guest approach that utilized a blue light emission P1 as a host with a green light P2 or a red light P3 as a guest led to approximately two- to fourfold enhancement in luminescence in comparison with that of a neat film in polymer light emitting diodes (PLEDs), 1039 versus 2205 cd/m~2 and 284 versus 1146 cd/m~2. In the case of white light, as a consequence of blending, polarized emission peak ratio of up to 4.4 and a pure white luminance brightness of up to 1895 cd/m~2 have been attained.
机译：通过钯催化的Suzuki偶联反应已经合成了三种交替的共聚芴，它们发出红色，绿色和蓝色（RGB）的原色。所有共聚物显示出良好的热稳定性和向列型液晶行为。使用聚（亚乙基二氧噻吩）-聚（苯乙烯磺酸）（PEDOT-PSS）作为取向层来制造聚合物以形成偏振电致发光器件。对于原色，采用主体发光方法，将蓝色发光P1用作主体，将绿色发光P2或红色发光P3作为客体，与发光相比，发光强度提高了约2到4倍。聚合物发光二极管（PLED）中的整齐薄膜，分别为1039对2205 cd / m〜2和284对1146 cd / m〜2。在白光的情况下，作为混合的结果，获得了高达4.4的偏振发射峰值比和高达1895 cd / m〜2的纯白色亮度亮度。

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