Halide Perovskite Properties (IMAGE) Penn State Caption Using ultrafast infrared imaging techniques (bottom left), a team of researchers from Penn State has revealed that the remarkable electronic properties of halide perovskite photovoltaic materials properties arise from large-scale motion of atoms (bottom right) in their crystalline lattice (top). Credit Asbury Lab, Penn State Usage Restrictions Credit must be published alongside image 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.