Photoactuators and motors based on carbon nanotubes with selective chirality distributions

Xiaobo Zhang, Zhibin Yu, Chuan Wang, David Zarrouk, Jung-Woo Ted Seo, Jim C. Cheng, Austin D. Buchan, Kuniharu Takei, Yang Zhao, Joel W. Ager, Junjun Zhang, Mark Hettick, Mark C. Hersam, Albert P. Pisano, Ronald S. Fearing and Ali Javey ()
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Xiaobo Zhang: Electrical Engineering and Computer Sciences, University of California
Zhibin Yu: Electrical Engineering and Computer Sciences, University of California
Chuan Wang: Electrical Engineering and Computer Sciences, University of California
David Zarrouk: Electrical Engineering and Computer Sciences, University of California
Jung-Woo Ted Seo: Materials Science and Engineering, Northwestern University
Jim C. Cheng: Electrical Engineering and Computer Sciences, University of California
Austin D. Buchan: Electrical Engineering and Computer Sciences, University of California
Kuniharu Takei: Electrical Engineering and Computer Sciences, University of California
Yang Zhao: Mechanical Engineering, University of California
Joel W. Ager: Lawrence Berkeley National Laboratory
Junjun Zhang: Electrical Engineering and Computer Sciences, University of California
Mark Hettick: Electrical Engineering and Computer Sciences, University of California
Mark C. Hersam: Materials Science and Engineering, Northwestern University
Albert P. Pisano: Berkeley Sensor and Actuator Center, University of California
Ronald S. Fearing: Electrical Engineering and Computer Sciences, University of California
Ali Javey: Electrical Engineering and Computer Sciences, University of California

Nature Communications, 2014, vol. 5, issue 1, 1-8

Abstract: Abstract Direct conversion of light into mechanical work, known as the photomechanical effect, is an emerging field of research, largely driven by the development of novel molecular and polymeric material systems. However, the fundamental impediment is that the previously explored materials and structures do not simultaneously offer fast and wavelength-selective response, reversible actuation, low-cost fabrication and large deflection. Here, we demonstrate highly versatile photoactuators, oscillators and motors based on polymer/single-walled carbon nanotube bilayers that meet all the above requirements. By utilizing nanotubes with different chirality distributions, chromatic actuators that are responsive to selected wavelength ranges are achieved. The bilayer structures are further configured as smart ‘curtains’ and light-driven motors, demonstrating two examples of envisioned applications.

Date: 2014
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DOI: 10.1038/ncomms3983

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