在碳纳米管预定向基质内形成的 1d 碘

N. R. Arutyunyan, A.A. Tonkikh, D. Rybkovskiy, E. A. Obraztsova, E. D. Obraztsova
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引用次数: 0

摘要

通过升华结晶碘相,合成了封装在预排列单壁碳纳米管基质内的一维碘纳米结构。纳米管薄膜的排列采用了液相自组装方法。由于碘结构的取向由主纳米管基体的取向自然决定,因此获得了内部结构在宏观尺度上的各向异性光学和电子特性。偏振拉曼光谱测量证实了沿纳米管轴向存在一维聚碘物种。对聚碘化链的偏振拉曼光谱进行的 DFT 计算表明,沿纳米管轴线定向的聚碘化链和螺旋扭曲的聚碘化链的纵向模式的偏振依赖性明显不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
1D IODINE FORMED INSIDE A PRE-ORIENTED MATRIX OF CARBON NANOTUBES
1D iodine nanostructures encapsulated inside a matrix of pre-aligned single-wall carbon nanotubes were synthesized by sublimation of a crystalline iodine phase. Liquid phase self-assembly method has been used for alignment of nanotube thin film. Since the orien-tation of the iodine structure was naturally determined by the orientation of the host nanotube matrix, the anisotropic optical and electronic properties of the inner structure at the macroscopic scale were obtained. Polarized Raman spectroscopy measurements con-firmed the presence of 1D polyiodide species oriented along the axis of nanotubes. The DFT calculations of polarized Raman spectra of polyiodide chains shown that the polari-zation dependences of the longitudinal modes for chains oriented along the nanotube axis and for helical twisted chains were significantly different.
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