碳纳米管-液晶纳米复合材料的分级组装

Hierarchical assembly of carbon nanotubes-liquid crystal nanocomposite.

作者信息

Kundu Sudarshan, Batabyal Sudip K, Nayek Prasenjit, Roy Subir K

机构信息

Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.

出版信息

J Nanosci Nanotechnol. 2008 Apr;8(4):1735-40.

DOI:
Abstract

Fabrication of liquid crystalline (LC) nanomaterials in an aligned pattern along the multiwalled carbon nanotubes (CNT) has been reported here. The nanocomposite was prepared by sonicating esterified CNTs and the ferroelectric liquid crystal (FLC) in chloroform. The nanohybrid shish kebab (NHSK) like pattern was observed in SEM analysis. The nanocomposite materials were characterized by Fourier transform infrared spectroscopy (FTIR), polarizing optical microscopy and electron microscopy. The DC and AC electrical properties of the composite materials were investigated. The DC conductivity of the nanocomposite increased by 2 order from the FLC materials and AC relaxation has been observed, in the nanocomposite, which was totally absent in the FLC materials.

摘要

本文报道了沿多壁碳纳米管(CNT)以排列模式制备液晶(LC)纳米材料的方法。通过在氯仿中超声处理酯化的碳纳米管和铁电液晶(FLC)来制备纳米复合材料。在扫描电子显微镜(SEM)分析中观察到了类似纳米复合串珠(NHSK)的图案。通过傅里叶变换红外光谱(FTIR)、偏光光学显微镜和电子显微镜对纳米复合材料进行了表征。研究了复合材料的直流和交流电学性能。纳米复合材料的直流电导率比FLC材料提高了2个数量级,并且在纳米复合材料中观察到了交流弛豫现象,而在FLC材料中完全不存在这种现象。

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