Structural anisotropy of magnetically aligned single wall carbon nanotube films
Structural anisotropy of magnetically aligned single wall carbon nanotube films
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DOI：
10.1063/1.127078
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发表时间：
2000-07-31
影响因子：
4
通讯作者：
Smalley, RE
中科院分区：
文献类型：
--
作者：
Smith, BW;Benes, Z;Smalley, RE
在强磁场中通过过滤/沉积从悬浮液中制备了取向的单壁碳纳米管和绳状碳纳米管厚膜。我们测量的马赛克分布的绳取向的膜平面。用于不同厚度的样品。对于类似于1 μ m的膜，由电子衍射导出的半高宽（FWHM）为25度-28度。通过X射线衍射测量的较厚膜（类似于7 μ m）的FWHM稍微宽一些，为35 +/-3度。取向薄膜比普通的过滤沉积薄膜更致密，比生长材料更致密。工艺的优化有望产生更小的半高宽和更高的密度，（C）2000美国物理研究所。【S0003-6951（00）05131-7】。
Thick films of aligned single wall carbon nanotubes and ropes have been produced by filtration/deposition from suspension in strong magnetic fields. We measured mosaic distributions of rope orientations in the film plane. for samples of different thicknesses. For an similar to 1 mu m film the full width at half maximum (FWHM) derived from electron diffraction is 25 degrees-28 degrees. The FWHM of a thicker film (similar to 7 mu m) measured by x-ray diffraction is slightly broader, 35 +/- 3 degrees. Aligned films are denser than ordinary filter-deposited ones, and much denser than as-grown material. Optimization of the process is expected to yield smaller FWHMs and higher densities, (C) 2000 American Institute of Physics. [S0003-6951(00)05131-7].