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Physics World Materials Briefing 2022

Physics World Materials Briefing 2022

Materials researchers often stubbornly refuse to accept the status quo. Electronic devices, for example, are usually made from components that do not interface well with biological materials – a consequence, in part, of the rigid, crystalline nature of silicon. Over the past few decades, however, experts in organic electronics have been working diligently to turn this situation on its head. As this free-to-read Physics World Materials Briefing reveals, recent achievements in this area include the first organic bipolar transistor, bioelectronics materials that are conductive, stretchable and photo-patternable, and even a graphene-based tattoo for measuring blood pressure.

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Graphene electronic tattoo research update

Graphene tattoo provides cuffless
blood-pressure monitoring

Melting ice cube research update

Solid-state cooling is achieved via electric field induced strain

Human–machine interfaces research update

Stretchable conducting polymers for bioelectronics

TPV device on heat sink research update

Thermophotovoltaic cells top 40 per cent efficiency

Michelle Oyen interview

Correcting an historical failure

ANU tiny slides research update

Meta-atoms act like road signs for light waves

Crystal structure of graphyne research update

New ‘wonder material’ graphyne synthesized in two labs

Conceptual image showing bars of charge on a battery bathed in cool, icy colours research update

Lithium-ion batteries recharge in the cold

Photograph of 3D-printed objects shaped like beetles. There are four such objects in the photo, two of them coloured red and two coloured green, and they are sitting on a leaf that forms the photo's background research update

4D-printed material responds to environmental stimuli

An artist's sketch of cubic boron arsenide, incorporating a ball-and-stick model of the chemical with four blue balls (representing arsenic atoms) and 14 smaller red balls (representing boron atoms). In the background is a burst of fuzzy purple-and blue lines suggesting movement of electrons research update

Champion semiconductor could replace silicon

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