1 synthesis of carbon nanotubes by chemical vapor deposition amit khosla mechanical engineering...
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1
Synthesis of Carbon nanotubes by Chemical Vapor Deposition
Amit Khosla
Mechanical Engineering
University of Colorado
Advisor: Prof. Roop. L. Mahajan
Introduction to Research- MCEN 5028
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Introduction -Carbon Nanotubes
Carbon nanotubes, long, thin cylinders of carbon, were discovered in 1991 by S. Iijima
They can be thought of as a sheet of graphite (hexagonal lattice of carbon) rolled into cylinder
Mechanical property- Young Modulus of 1TPA
Electronic Properties- Semiconductor or metal
Thermal Properties- Conductivity at room temperature- 3000 W/ m.k
Introduction to Research- MCEN 5028
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Motivation
To have an in house facility to produce carbon nanotubes for development of
Thermal interface material using structured carbon nanotube arrays
Carbon nanotube-epoxy composites Carbon nanotube based paint
Introduction to Research- MCEN 5028
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Research Approach
Chemical vapor deposition set up
Parameters to be varied are:
Temperature , Mass Flow Rate, Hydrocarbon source, Carrier gas, Deposition Metal
Introduction to Research- MCEN 5028
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Synthesis: CVD
•Large scale possible
•Relatively cheap
•SWNTs / MWNTs
•Aligned nanotubes
Introduction to Research- MCEN 5028
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Schedule
Task Sep-Oct’04 Nov-Dec’04 Jan-Feb’05 Mar-Apr’05
Literature Review
Design and build Set up
Experiments
Analysis
Introduction to Research- MCEN 5028
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