Single Nanowire Photodetector (IMAGE) University of California - San Diego Caption Drawing of a single nanowire photodetector. When light strikes the nanowire in such a way that an electron and hole in the semiconducting material split apart, the electron runs along the wire and increases the wire's current and light is detected. Credit UC San Diego Usage Restrictions UC San Diego License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.