Communication

Flexible Carbon-Nanofiber Connectors with Anisotropic Adhesion Properties†

  1. Hyunhyub Ko1,
  2. Zhenxing Zhang1,2,
  3. Johnny C. Ho1,
  4. Kuniharu Takei1,
  5. Rehan Kapadia1,
  6. Yu-Lun Chueh1,
  7. Weizhen Cao1,
  8. Brett A. Cruden3,
  9. Ali Javey1,*

Article first published online: 20 NOV 2009

DOI: 10.1002/smll.200901867

Issue

Small

Small

Volume 6, Issue 1, pages 22–26, January 4, 2010

Additional Information

How to Cite

Ko, H., Zhang, Z., Ho, J. C., Takei, K., Kapadia, R., Chueh, Y.-L., Cao, W., Cruden, B. A. and Javey, A. (2010), Flexible Carbon-Nanofiber Connectors with Anisotropic Adhesion Properties. Small, 6: 22–26. doi: 10.1002/smll.200901867

Author Information

  1. 1

    Department of Electrical Engineering and Computer Sciences University of California at Berkeley Berkeley, CA 94720 (USA)

  2. 2

    Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Gansu 730000 (P.R. China)

  3. 3

    ELORET Corp., 465 S. Mathilda Ave. Sunnyvale, CA 94086 (USA)

*Department of Electrical Engineering and Computer Sciences University of California at Berkeley Berkeley, CA 94720 (USA).

  1. †

    The authors thank B. E. Schubert and R. Fearing for insightful discussions and suggestions. This work was supported by DARPA/DSO, NSF Center of Integrated Nanomechanical Systems, and Berkeley Sensor and Actuator Center. Z.Z. acknowledges a fellowship from the China Scholarship Council. The CNF synthesis part of this project was supported by a Laboratory Directed Research and Development grant from Lawrence Berkeley National Laboratory.

Publication History

  1. Issue published online: 28 DEC 2009
  2. Article first published online: 20 NOV 2009

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Keywords:

  • anisotropy;
  • carbon nanofibers;
  • directional adhesion;
  • flexible materials
Thumbnail image of graphical abstract

Flexible carbon nanofiber (CNF) connectors are enabled by the direct transfer of vertical CNF arrays grown on silicon substrates to plastic substrates (see image). The vertical geometry of the CNF arrays provides strong shear adhesion strength with minimal disengagement forces. By controlling the tilt angle of the CNF arrays, directional shear adhesion properties are enabled.

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