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Carbon Nanotube Films: Fabrication Techniques, and applications in sensing and energy conversion

Carbon Nanotube Films: Fabrication Techniques, and applications in sensing and energy conversion. Bhupesh Chandra 1 ,Jessika Trancik 2 , Bonnie Gurry 1 , Yuhao Sun 3 , Sean White 1 , Adam Hurst 1 , Scott Barton 3 , James Hone 1 1 Dept. of Mechanical Engineering,

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Carbon Nanotube Films: Fabrication Techniques, and applications in sensing and energy conversion

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  1. Carbon Nanotube Films: Fabrication Techniques, and applications in sensing and energy conversion Bhupesh Chandra1,Jessika Trancik2, Bonnie Gurry1, Yuhao Sun3, Sean White1, Adam Hurst1, Scott Barton3, James Hone1 1Dept. of Mechanical Engineering, 2Dept. of Chemical Engineering Columbia University

  2. vent Flow Controllers Nanotube CVD Growth • Chemical Vapor Deposition: produces long, clean nanotubes that can be aligned by process gas flow. • Limitations: High T required, low throughput • Challenges: High-yield growth, even catalyst deposition, thick films with low resistivity 200 mm

  3. Nanotube Tape Transfer Process CVD grown Nanotube Film over silicon Water soluble tape over film Pulling tape along with the film Transferred Nanotube Film on target Dissolving tape in water Tape with film on target substrate Nanotube Film Transfer b First transfer Second transfer Third transfer

  4. Nanotube Films in Dye-Sensitized Solar Cells: Transparent, Conducting, Catalytic Electrode CVD film Filtered films Filtered film data: courtesy G. Gruner

  5. Nanotube Films for Fluid Flow Sensing Nanotube Film over quartz Silicone insulation Gold Pads Fluid Plexiglas • Use of film allows careful exploration of effects of sample geometry, fluid mechanics • Initial data shows reproducible but slow flow-dependent signal

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