Grazing-Incidence Wide-Angle X-Ray Scattering (IMAGE) American Institute of Physics Caption Organic solar cells are steadily improving as new materials are developed for the active layer, and a paper published this week in Applied Physics Reviews presents a practical guide for selecting materials for ternary organic solar cells. The authors set out to employ component engineering to extend the light absorption and efficiency of solar cells in a simple, physical way instead of the complicated process of synthesizing new semiconductors. Grazing-incidence wide-angle X-ray scattering was used to profile the molecular packing and orientation of the binary system's material with PBDB-T-SF and IT-4F added in different amounts. Credit Data obtained at Beamline I07 at the Diamond Light Source (UK) Usage Restrictions Journalists may use this image only with appropriate 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.