Piezo-phototronic nanowire LEDs can scan your fingerprint

By leveraging a new type of LED technology, called piezo-phototronics, researchers at the Georgia Institute of Technology have created a high-resolution nanowire array that has a truly astonishing number of potential uses, ranging from fingerprint readers to touch-sensitive robot skin to e-paper that allows you to sign your own personalized signature. In the future, this might be the perfect technology to implement a fingerprint reader in Apple’s iPhone 8.