Graphene sales

Our researchers discovered Graphexeter - the best known transparent material able to conduct electricity. Graphexeter is based on a functionalised form of graphene, and it outperforms even the widely used Indium Tin Oxide and is the subject of International Patent Application No. PCT/GB2014/052913.

The growth and characterisation of high quality materials is conducted in the Craciun and Russo laboratories at the University of Exeter by Dr Laureline Mahe.

Facilities

The fabrication of devices is carried out in our newly built clean room which has state-of-the-art lithography and etching systems to fit a wide range of custom demands.

Materials are routinely characterised with Raman spectroscopy, low-noise electrical transport and magneto-transport measurements, optical absorption and reflection, scanning electron microscopy, X-ray diffraction and tunnelling electron microscopy.

Products

Monolayer CVD graphene grown on copper foil

Characteristics

  • Monolayer 99 per cent of the surface area
  • Coverage 100 per cent
  • Grain size typically 30 μm

Sizes available:

  • 1cm x 1cm
  • 2cm x 2cm
  • 4cm x 4cm
  • 4cm x 8cm
  • Sheet of 17" diagonal

Other sizes may be available on request. For prices please contact us.

Graphene devices on p-Si/SiO2

Characteristics

  • Monolayer 99 per cent of the surface area
  • Coverage 100 per cent
  • Metal contact material Cr/Au (5/50 nm)

Devices available include:

  • Two-terminal graphene transistor Dimensions (25 um2)
  • Six terminal graphene device (up to 1 mm2)
  • Four terminal ring-shaped transistors
  • Plasmonic arrays of nanoribbons, surface area (2x2 mm2)

Please contact us for prices.

Packaging

Graphene samples are packaged either in gel boxes or in membrane boxes (at your request) and sealed under vacuum.

Custom structures

We can produce custom graphene structures and devices on quartz, glass or Si/SiO2 upon request. Patterns are realised using electron beam lift off lithography. Structures we can produce include

  • Graphene transistors
  • Graphene Hall bars
  • Superconducting nanostructures
  • Graphene plasmonic arrays

For more information please contact either Dr Laureline Mahe or the University of Exeter Consulting team.