Details

Project TitleFlash Reduction of Graphic Oxide to Graphene
Track Code2008-166
Short Description

A flash conversion process where photolytic exposure instantaneously converts graphene oxide (GO) to graphene enabling rapid formation of fused graphene/polymer composites from a random mixture of GO and polymer particles. Using a photo-mask, conducting graphene/polymer patterns can be readily produced on flexible substrates.

#materials #graphene/graphite

Abstract

Graphite oxide (GO) is a promising precursor for the bulk production of graphene-based materials due to its relatively low cost of synthesis. The superior solvent processability of GO makes it attractive for making composites by premixing with other materials. Typically, the reduction of GO has relied on either chemical agents or high temperature treatment. This invention provides a room temperature, chemical-free flash reduction deoxygenation reaction of GO by photothermal heating. Flash irradiation also rapidly creates a fused polymer composite from a random mixture of GO and polymer particles. Using a photomask, conducting patterns such as interdigitated electrode arrays can be readily made on flexible substrates.

 
TagsMATERIALS: graphene/graphite
 
Posted DateJul 7, 2011 12:53 PM

Inventor(s)

Laura Cote
Jiaxing Huang*
Rodolfo Cruz Silva

Applications

Fabrication: device and composite materials (eg. flexible transparent conductors)

Advantages

  • Bulk production
  • Low cost
  • Energy-efficient
  • Rapid
  • Enhanced electrical conductivity
  • Superior solvent processability

Publication

IP Status

A patent application has been filed.

Contact Information

Sarah Kamper, PhD
Invention Associate  
(p) (847) 491-5095
(e) sarah.kamper@northwestern.edu