Professor Alex Jen (IMAGE) City University of Hong Kong Caption Professor Alex Jen specializes in developing various novel solar power solutions with perovskite photovoltaics, organic and organic-inorganic hybrid photovoltaics. Credit City University of Hong Kong Usage Restrictions Image must be used with appropriate caption and credit. 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.