扫描电子显微镜增强碳纳米管和聚合物复合膜的图像对比度

IF 1.8 4区工程技术

Microscopy Pub Date : 2019-11-01 DOI:10.1093/jmicro/dfaa006

Yoichiro Hashimoto;Hiroyuki Ito;Masahiro Sasajima

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引用次数: 2

摘要

优化了碳纳米管（CNT）和聚四氟乙烯（PTFE）在CNT/PTFE复合膜中的图像对比度，以更好地阐明CNT在膜中的分布。采用超低着陆能量条件（本研究中为0.3keV）来防止电子束辐照引起的样品损伤。计算了表示能量和起飞角分布的信号接受图，以评估本研究中使用的信号检测系统的特征。该复合膜的SEM图像是在几种条件下拍摄的，并使用这些验收图进行分析。在优化的能量和起飞角范围下，即使在超低着陆能量条件下，使用BSE信号，也可以通过材料和地形对比清楚地区分复合膜中的CNT和PTFE。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Enhancement of image contrast for carbon nanotube and polymer composite film in scanning electron microscope

Image contrast between carbon nanotubes (CNTs) and polytetrafluoroethylene (PTFE) in a CNT/PTFE composite film, which is difficult to obtain by conventional backscattered electron (BSE) imaging, was optimized to better elucidate the distribution of CNT in the film. Ultra-low landing energy condition (0.3 keV in this study) was used to prevent specimen damage due to electron beam irradiation. Signal acceptance maps, which represent the distributions of energy and take-off angle, were calculated to evaluate the features of the signal detection system used in this study. SEM images of this composite film were taken under several sets of conditions and analyzed using these acceptance maps. CNT and PTFE in the composite film can be clearly distinguished with material and topographic contrasts using the BSE signal under optimized energy and take-off angle ranges, even at ultra-low landing energy conditions.

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来源期刊

Microscopy 工程技术-显微镜技术

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Microscopy, previously Journal of Electron Microscopy, promotes research combined with any type of microscopy techniques, applied in life and material sciences. Microscopy is the official journal of the Japanese Society of Microscopy.