Rigorous measurement protocols are key to unraveling the complex physical structure of carbon nanotubes [CNTs] embedded in a polymer composite, shown here in a three-dimensional scanning electron microscope image. The sizes, shapes and distribution of CNTs in the polymer can be measured from this image.
N.B. This image is an anaglyph 3-D version using red-cyan image separation. It is meant to be viewed with the common red-cyan 3-D glasses.