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Measurement Of The Adhesion Force Between A Carbon Nanotube And A Curved Silicon Surface

Student Name: Anderson, Daniel
Advisor Name: Hess, Bret C.
Approval Date: 8/1/2009
Report Type: Capstone
Title: Measurement Of The Adhesion Force Between A Carbon Nanotube And A Curved Silicon Surface
Abstract: We calculate the adhesion force between a carbon nanotube and differently shaped surfaces of a silicon block. We use the empirical molecular dynamics program “GULP” to test this. We vary the length of the adhesion contact surface and measure the respective adhesive force. We also vary the curvature of the surface and measure the adhesive force. We find that for contact surfaces between 5nm and 35nm the adhesive force varies linearly with the contact length. We also find that for a (7, 0) carbon nanotube which is kept at approximately 1.9Å from a curved silicon surface, the adhesion force increases rapidly for small radii as the number of nearest neighbor Si-C bonds increases and the nanotube becomes fully embedded in silicon.
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