By KAREN LEE and ROBERT P. JOHNSONThe science of photocatalytic and photocatrophic processes is well understood.But a new study from the U.S. Department of Energy’s Argonne National Laboratory suggests the world’s most efficient semiconductor material may not be what you think.In a new paper, researchers from Argonne and the University of Illinois at Urbana-Champaign, along with Argonne scientists and students, […]