Fibers Coated in Glass (IMAGE) Norwegian University of Science and Technology Caption By using silicon fibers coated in glass, researchers have been able to make solar cells from silicon that is 1000 times more impure, and thus cheaper, than the current industry standard. Credit Photo: Fredrik A. Martinsen, NTNU Usage Restrictions None 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.