The world might run out of a crucial ingredient of touch screens. But don't worry, we've invented an alternative

  • Written by: Behnam Akhavan, Senior Lecturer, ARC DECRA Fellow, School of Biomedical Engineering and School of Physics, Sydney Nano Institute, University of Sydney
The world might run out of a crucial ingredient of touch screens. But don't worry, we've invented an alternativeTimothy Muza/Unsplash, CC BY-SA

Have you ever imagined your smart phone or tablet without a touch screen? This could soon be the case if we run out of indium, one of the rarest minerals on Earth.

Indium is used in many high-tech devices such as touch screens, smart phones, solar panels and smart windows, in the form of indium tin oxide. This...

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