The Department of Energy Office of Science recently published a highlight – “Wrapped, Layered Semiconductors Catch the Light” – about the research of Eli Sutter, professor of mechanical and materials engineering, and Peter Sutter, professor of electrical and computer engineering. The researchers used a simple and efficient new method to spontaneously form high-quality semiconductor layers with a core-shell structure. The simple process means these new heterostructures could be relatively easy to produce. The structures absorb light using their core, shell, and the interfaces between the components. This translates into enhanced light harvesting. The heterostructures are promising for applications using the sun to accelerate chemical reactions. For example, they could have a role in electricity and fuel production.