ZnO Nanowire Photodetector (IMAGE) University of California - San Diego Caption A single ZnO nanowire held down by metal contacts. The nanowire segments between metal contacts serve as super-sensitive photodetectors. Credit UC San Diego Usage Restrictions Mandatory Credit: 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.