Abstract
We report a novel way to draw films from super-aligned carbon nanotube arrays at largedrawing angles. The obtained super-aligned carbon nanotube films have a periodicallystriped configuration with alternating thinner and thicker film sections, and the width ofthe stripes is equal to the height of the original arrays. Compared with ordinary uniformfilms, the striped films provide a better platform for understanding the mechanism ofspinning films from arrays because carbon nanotube junctions are easily observed andidentified at the boundary of the stripes. Further studies show that the carbon nanotubejunctions are bottleneck positions for thermal conduction and mechanical strength of thefilm, but do not limit its electrical conduction. These films can be utilized as striped andhigh-degree polarized light emission sources. Our results will be valuable for newapplications and future large-scale production of tunable super-aligned carbon nanotubefilms.
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