Giant strain response in ionic nanoporous graphene actuator with hierarchical structures

C. Welsh, Y. Zhou, M. Ghaffari, M. Lin, Chong Min Koo, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The fabrication and strain responses of nanoporous graphene actuators with hierarchical structures are reported. Poly(methyl methacrylate) (PMMA) patterning on a porous substrate and vacuum filtration were used to successfully pattern the hierarchical nanoporous graphene structures. Scanning electron microscopy (SEM) images depict successful hierarchical structuring with quick ion transport channels in the electrodes of the actuator. Profilometer measurements show uniform graphene thickness throughout the electrodes. The measured strain response shows much improvement over nanoporous graphene actuators reported earlier which do not have fast transport ion channels. The high strain response is a direct result of improved ion transport through the hierarchical nanoporous graphene channels.

Original languageEnglish
Article number7116327
Pages (from-to)1389-1393
Number of pages5
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Issue number3
Publication statusPublished - 2015 Jun 1
Externally publishedYes

Bibliographical note

Funding Information:
This work has been supported by a grant from Samsung Advance Institute of Technology, by a grant from Korean Institute of Science and Technology, and by NSF under grant number CMMI-1130437. The authors wish to thank the Penn State Nanofab staff for discussions.


  • Actuators
  • Graphene
  • Nano-structures

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Giant strain response in ionic nanoporous graphene actuator with hierarchical structures'. Together they form a unique fingerprint.

Cite this