From zdnet.com
A team of academics from the University of Michigan has developed self-powered and self-erasing chips that they hope could be used as an anti-counterfeit or tamper-detection system.
The new chips have been built with the help of a new material that changes its color while it temporarily stores energy.
The material consists of a three-atom-thick layer of semiconductor laid on top of a film of azobenzene molecules.
The semiconductor is known as “beyond graphene,” and has a special property that it can emit light when its molecules vibrate at certain frequencies.