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Nitrogen containing graphene-like structures from pyrolysis of pyrimidine polymers for polymer/graphene hybrid field effect transistors

机译:用于聚合物/石墨烯杂化场效应晶体管的嘧啶聚合物热解过程中的含氮石墨烯状结构

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摘要

Nitrogen containing graphene like structures were obtained by the pyrolysis of two pyrimidine polymers at 600 degrees C. Pyrimidine polymers were prepared by the base catalyzed aldol condensation reactions between 2-decyloxy-4,6-dimethylpyrimidine and two aromatic dialdehydes. Pyrolyzed products were shown to have a graphitic structure by Raman spectroscopy, scanning electron microscopy, and powder X-ray diffraction studies. The presence of nitrogen in the graphitic structures was proved by elemental analysis and energy dispersive X-ray analysis experiments. Fluorescence quenching experiments with poly(3-hexylthiophene) (P3HT) showed that the resultant graphitic material can act as an acceptor. These materials were tested in P3HT/graphene hybrid field effect transistors which exhibited higher mobilities and comparable on/off ratios compared to P3HT only devices.
机译:通过在600℃下热解两种嘧啶聚合物获得了类似氮的石墨烯结构。通过在2-癸氧基-4,6-二甲基嘧啶和两种芳族二醛之间的碱催化的醛醇缩合反应制备了嘧啶聚合物。通过拉曼光谱法,扫描电子显微镜法和粉末X射线衍射研究显示热解产物具有石墨结构。通过元素分析和能量色散X射线分析实验证明了石墨结构中氮的存在。用聚(3-己基噻吩)(P3HT)进行的荧光猝灭实验表明,所得石墨材料可以充当受体。这些材料在P3HT /石墨烯混合场效应晶体管中进行了测试,与仅使用P3HT的器件相比,它们具有更高的迁移率和可比的开/关比。

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