A multi-walled carbon nanotube–aluminum bimorph nanoactuator

A multi-walled carbon nanotube (MWNT) bimorph nanoactuator has been modeled, fabricated and characterized. A thin aluminum film was uniformly deposited on the sidewalls of MWNTs using a pulsed laser deposition method to create the bimorph nanostructure. For a temperature change from 290 to 690 K wit...

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Bibliographic Details
Published in:Nanotechnology 2009-03, Vol.20 (9), p.095502-095502
Main Authors: Sul, Onejae, Yang, Eui-Hyeok
Format: Article
Language:English
Subjects:
Aluminum - chemistry
Crystallization - methods
Equipment Design
Equipment Failure Analysis
Materials Testing
Micromanipulation - instrumentation
Micromanipulation - methods
Nanotechnology - instrumentation
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - ultrastructure
Particle Size
Stress, Mechanical
Temperature
Transducers
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Summary:A multi-walled carbon nanotube (MWNT) bimorph nanoactuator has been modeled, fabricated and characterized. A thin aluminum film was uniformly deposited on the sidewalls of MWNTs using a pulsed laser deposition method to create the bimorph nanostructure. For a temperature change from 290 to 690 K with measured dimensions of 100 +/- 20 nm for the MWNT diameter, 40 +/- 10 nm for the Al thickness, and 5.2 +/- 0.5 microm for the bimorph length, the measured deflection was 550 +/- 200 nm, which was in good agreement with the calculation. The actuation force was measured using a lateral force microscopy technique, and the measured values agreed well with the prediction based on the model. The nanoactuator generated a microN force at its tip.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/20/9/095502