The top image shows a diagram
of a multiwall nanotube with its outer layers selectively broken via
jolts of electricity. The bottom image depicts a clump, or rope, of
nanotubes stuck together. Researchers can destroy the metallic nanotubes
with electricity, leaving a rope containing only semi-conducting nanotubes.
The background of each diagram is a microscope image of the actual
nanotubes and electrodes.
yield nanotube transistors
TRN May 2/9, 2001