Measurement for our planet
Measurement for our planet

Following COP26, discover how NPL plays a key role in enabling climate action through the delivery of accurate, reliable data that supports decision making and enables low carbon innovation.

Graphene-enabled standards

Graphene enabled standards
NPL’s table-top quantum Hall instrument.

The quantum Hall effect is used to define the metrological standard for electrical resistance in terms of the ratio of fundamental constants of nature, Planck’s constant (h) and the square of the elementary charge (e). Graphene supports the quantum Hall effect in much more relaxed conditions, higher temperature and lower magnetic field, than conventional semiconductors. Our push-button quantum Hall resistance standards with graphene at their heart will be used in industry to create more accurate electronic components.


Find out more about NPL's Table-top quantum Hall (TTQH) instrument

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Our research and measurement solutions support innovation and product development. We work with companies to deliver business advantage and commercial success.
Contact our Customer Services team on +44 20 8943 7070