首页> 外文期刊>The Journal of Chemical Physics >Multi-scale scanning tunneling microscopy imaging of self-organized regioregular poly(3-hexylthiophene)films
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Multi-scale scanning tunneling microscopy imaging of self-organized regioregular poly(3-hexylthiophene)films

机译:自组织区域规则聚(3-己基噻吩)薄膜的多尺度扫描隧道显微镜成像

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摘要

Two-dimensional self-organized poly(3-hexylthiophene) films on highly oriented pyrolytic graphite have been probed at the soldi/substrate interface by scanning tunneling microscopy (STM). Structural morphology and typical polymer conformations are visualized and discussed from mesoscopic to nanoscopic scales,including mesoscopic assembly of polycrystals,crystalline monodomain orientations and sizes,grain boundaries,chain folds,and other conformational features. STM estimation of teh average chain length is in remarkably good agreement with that deriv4ed from size-exclusion chromatography. The multiscale analysis supports a picture where heterogeneities exist at different length scales.
机译:通过扫描隧道显微镜(STM),已在soldi /基质界面上探测了高取向热解石墨上的二维自组织聚(3-己基噻吩)薄膜。可视化并讨论了从中观到纳米尺度的结构形态和典型的聚合物构象,包括多晶的介观组装,晶体单畴取向和大小,晶界,链折叠以及其他构象特征。 STM估算的平均链长与尺寸排阻色谱法的估算值非常吻合。多尺度分析支持一张图片,其中异质性以不同的长度尺度存在。

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