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April 25th, 2005
Sapphire Stars in Nanotube Support Role
USC researchers have found that sapphire surfaces spontaneously arrange carbon nanotubes into useful patterns — but only the right surfaces.
As a substrate for the creation of single wall nanotube (SWNT) devices, sapphire has a critical advantage, says Chongwu Zhou of the USC Viterbi School of Engineering's department of electrical engineering.
Single walled carbon nanotubes will grow along certain crystalline orientations on sapphire. No template has to be provided to guide this structuring: it takes place automatically.
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