Superaligned Carbon Nanotube Grid for High Resolution Transmission Electron Microscopy of Nanomaterials
Nano is one of the hottest topics in current science and technology. Characterizations of nanomater ials by high resolution transmission electron microscopy (TEM) are becoming indispensable today. To gain better performance of TEM, people are expecting a novel TEM grid of which the supporting film should be highly conductive, ultrathin but robust, and preferably nanoholey. Here we report a method of mass producing such a kind of carbon nanotube TEM grids. The supporting films are made by cross stacking ultrathin superaligned carbon nanotube films, resulting in a large number of nanosized holes and numerous effective edges. Together with the robustness, good conductivity, and strong adsorbability inherited from carbon nanotubes, these TEM grids show much better performance than conventional amorphous carbon grids.
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