Integrated Circuits Go Wearable

Flexible electronics

Flexible electronics are a part of our lives already, whether we realise it or not. Organic LEDs, some transistors and many photovoltaics are technically capable of bending and curving. However, they still often need to be integrated into rigid surfaces as the majority of consumer technology has not migrated to the use of fully-flexible circuitry and hardware yet.

Wearable electronics need to withstand washing

Their ink had a non-toxic solvent base with a lower boiling point (which forms more stable inks at room temperature) which contained graphene and nitrides of hexagonal boron (hBNs, which confer additional electronic properties). It could be deposited on polyester using drop-on-demand printing, which is a form of laser printing. It could achieve a field-effect mobility of approximately 91 cm2 per volt per second (cm2/V/s) at an operating voltage of <5 V. The researchers, who include Felice Torrisi of the Cambridge Graphene Centre, also found that the printed circuits could survive the equivalent of about 20 washes in a conventional machine.

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Evolving Science

Evolving Science

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