Synthesis of polymer bead nano-necklaces on aligned carbon nanotube scaffolds

Noa Lachman*, Itai Y. Stein, Asli Ugur, Dale L. Lidston, Karen K. Gleason, Brian L. Wardle

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Here, we report the fabrication of aligned carbon nanotube (A-CNT)/conducting polymer (CP) heterostructures with both uniform conformal and periodic beaded polymer morphologies via oxidative chemical vapor deposition of poly(ethylenedioxythiophene). Periodic beaded CP morphologies are realized utilizing the Plateau-Rayleigh instability to transform the original uniform conformal film, yielding a beaded CP morphology with a >50% enhancement in specific surface area (SSA). Modeling indicates that this SSA increase originates from the internal volume of the A-CNTs becoming available for adsorption, and that these internal A-CNT surfaces, if they could be made accessible to electrolyte ions, could lead to >30% enhancement of specific gravimetric and volumetric capacitances of current state-of-the-art A-CNT/CP heterostructures.

Original languageEnglish
Article number24LT01
JournalNanotechnology
Volume28
Issue number24
DOIs
StatePublished - 23 May 2017

Keywords

  • Plateau-Rayleigh instability
  • carbon nanotubes
  • conductive polymer
  • energy storage
  • film morphology
  • one-dimensional heterostructures
  • specific surface area

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