NPL – the National Physical Laboratory – has developed a unique system allows transport measurements under highly-controlled environments, enabling environmentally specific graphene characterisation.

In summary, this system offers the following services:

  • Magneto-transport measurements of patterned and un-patterned samples;
  • Operation in ambient and vacuum (P≈10-7 mbar) conditions;
  • Four gases dilution down to 5 ppb;
  • Humidity ranges 0–90%;
  • Heating stage (30–200 °C);
  • Long-time measurements;
  • Graphene film electrical characterisation for quality control.
(a) The environmental transport properties measurement system; and (b–c) electronic controllers and instruments

(a) The environmental transport properties measurement system; and (b–c) electronic controllers and instruments