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首页> 外文期刊>Journal of Applied Polymer Science >Incorporation of benzothiadiazole moiety at junction of polyfluorene-polytriarylamime block copolymer for effective color tuning in organic light emitting diode
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Incorporation of benzothiadiazole moiety at junction of polyfluorene-polytriarylamime block copolymer for effective color tuning in organic light emitting diode

机译：结合苯并噻唑部分在多氟醚 - 聚甲段嵌段嵌段共聚物中的有效色调中的有效颜色调谐

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摘要

Block copolymer consisting of polyfluorene and polytriarylamine with benzothiadiazole moiety at the junction is prepared in order to obtain an orange emitting polymer via Suzuki-Miyaura followed by Buchwald-Hartwig coupling reactions. Electroluminescent device fabricated with resulting block copolymer exhibit only orange emission, although slight blue emission is observed in the fluorescent spectrum for the thin film, indicating that benzothiadiazole part plays a role of an effective trap site. Devices based on polyfluorene homopolymer doped with block copolymer (10 wt %) or an orange emitting model compound at the corresponding content of benzotiadiazole unit are also fabricated. The device with the model compound exhibits orange emission with Commission Internationale de l'Eclairage (CIE) coordinate of (0.58, 0.42), whereas that with block copolymer pale orange with the coordinate of (0.44, 0.38). This fact is probably due to the preferential distribution of block copolymer at the vicinity of anode via hydrophilic interaction of trioxyethylene side chains with poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate). (C) 2017 Wiley Periodicals, Inc.
机译：制备由聚芴和聚亚替兰胺组成的嵌段共聚物，以在结处与苯并噻唑部分组成，以通过Suzuki-miyaura获得橙色发射聚合物，然后得到Buchwald-Hartwig偶联反应。由得到的嵌段共聚物制造的电致发光器件仅表现出橙色排放，尽管在薄膜的荧光光谱中观察到轻微的蓝色发射，表明苯并噻唑部分起到有效陷阱部位的作用。还制造基于掺杂有嵌段共聚物（10wt％）或橙色发光模型化合物的基于聚芴均聚物的器件。制造在相应的苯并立唑单元的相应含量。具有模型化合物的装置展示橙色排放委员会Internationalee de L'EclaReage（CIE）坐标（0.58,0.42），而嵌段共聚物浅橙色（0.44,0.38）。这一事实可能是由于通过三元乙烯侧链与聚（3,4-亚乙基氧基噻吩）的亲水相互作用的阳极附近的嵌段共聚物的优先分布：聚（苯乙烯磺酸盐）。 （c）2017 Wiley期刊，Inc。

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