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Thursday, January 18, 2018

Graphene sensors target the IoT

By Nick Flaherty

Researchers at The University of Manchester have developed graphene sensors embedded into RFIDs, which they say have the potential to revolutionise the Internet of Things (IoT).

Layering graphene-oxide over graphene creates a flexible structure for a a humidity sensor with the ability to connect to any wireless network as part of an RFID system.

Such sensors can be printed layer-by-layer for scalable and mass production at very low cost. The device also requires no battery source as it harvests power from the receiver. This can be used for various applications such as battery-free smart wireless monitoring for manufacturing processes that are sensitive to moisture, food safety, healthcare and nuclear waste.

"The excitement does not end with this new application here, but leads to the future possibilities of integrations of this technique with other 2D materials to open up a new horizon of wireless sensing applications," said Dr Zhirun Hu who led the work.

This is the first example of the printable technology where several 2D materials come together to create a functional device immediately suitable for industrial applications.

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