Carbon nanotube films fabrication techniques and applications in sensing and energy conversion
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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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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 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


Nanotube cvd growth

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


Nanotube film transfer

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


Nanotube films in dye sensitized solar cells transparent conducting catalytic electrode

Nanotube Films in Dye-Sensitized Solar Cells: Transparent, Conducting, Catalytic Electrode

CVD

film

Filtered films

Filtered film data: courtesy G. Gruner


Nanotube films for fluid flow sensing

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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