Autonomic restoration of electrical conductivity using polymer-stabilized carbon nanotube and graphene microcapsules

Susan A. Odom, Timothy P. Tyler, Mary M. Caruso, Joshua A. Ritchey, Matthew V. Schulmerich, Scott J. Robinson, Rohit Bhargava, Nancy R. Sottos, Scott R. White, Mark C. Hersam, Jeffrey S. Moore

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Abstract

We report the use of microcapsules containing suspensions of polymer-stabilized carbon nanotubes and/or graphene flakes for the autonomic restoration of conductivity in fractured gold lines. Multilayered samples were prepared in which microcapsules were embedded in layers of epoxy above and below a glass slide patterned with gold lines. Upon sample fracture, conductivity was lost as a crack formed in the gold line. Simultaneous release of carbon nanotubes and/or graphene suspensions from capsule cores restored conductivity in minutes. We suggest a healing mechanism in which the released carbon nanomaterials bridge gaps in the gold lines.

Original languageEnglish
Article number043106
JournalApplied Physics Letters
Volume101
Issue number4
DOIs
Publication statusPublished - Jul 23 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Odom, S. A., Tyler, T. P., Caruso, M. M., Ritchey, J. A., Schulmerich, M. V., Robinson, S. J., Bhargava, R., Sottos, N. R., White, S. R., Hersam, M. C., & Moore, J. S. (2012). Autonomic restoration of electrical conductivity using polymer-stabilized carbon nanotube and graphene microcapsules. Applied Physics Letters, 101(4), [043106]. https://doi.org/10.1063/1.4737935