REDORBIT: Developing renewable energy sources has never been more important, and solar photovoltaic (PV) technologies show great potential in this field. They convert direct sunlight into electricity with little impact on the environment. This field is constantly advancing, developing technologies that can convert power more efficiently and at a lower cost. To highlight breakthroughs in this area, the editors of Energy Express, a bi-monthly supplement to Optics Express, the open-access journal of the …