Robotic Skin Lights Up When Touched - Wired Science

Robotic Skin Lights Up When Touched - Wired Science Thinner than a sheet of paper, the skin is made from layers of plastic and a pressure-sensitive rubber. A conductive silver ink, organic LEDs, and thin-film transistors made from semiconductor-enriched carbon nanotubes are sandwiched between the layers. Applying pressure sends a signal through the rubber that ultimately turns on the LEDs, which light up in red, green, yellow or blue.