Nanobuds...

A nanobud consists of a tube of carbon atoms with a bud-like appendage.

Transparent films containing carbon nanobuds—molecular tubes of carbon with ball-like appendages—could turn just about any surface, regardless of its shape, into a touch sensor.



The films were developed by a Finnish startup, Canatu, and could be used to add touch controls to curved automobile consoles and dashboards, for example. The films are rugged and can be repeatedly bent around something as thin as the cord for your earbuds, so they could be handy for adding buttons to flexible devices.



Touch screens are usually made by overlaying a display screen with a transparent sheet of indium tin oxide. This material is brittle, however, and can’t be used on anything other than a flat surface. Individual carbon nanotubes have long been seen as a promising alternative because they conduct electricity so well. But carbon nanotubes have performed badly in touch screens due to poor electrical connections between different nanotubes. Carbon nanobuds are better because the ball-like appendages are particularly good at emitting electrons, which improves those electrical connections.



MIT Technology Review:
“Nanobuds” Could Turn Almost Any Surface Into a Touch Sensor, Kevin Bullis

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