Harvesting UV Light from sunlight just got ‘solid’ EurekAlert!Solid-state material turns visible light into high-energy UV at sunlight intensity, expanding solar energy potential Phys.orgSterically protected π-electron systems for efficient solid-state photon upconversion NatureNew solid-state material turns ordinary sunlight to powerful ultraviolet photon Interesting EngineeringNew Solid Material Turns Ordinary Sunlight Into High-Energy UV Light ScienceBlog.com