light-emitting diodes

Cutting through noise for better solar cells

U physicists analyzed electrical noise to detect formerly invisible inefficiencies in solar cells and identified the physical processes that caused them. The technique could make future solar cells more efficient.


Gerald Stringfellow, an older man with white hair, and white goatee and wire-rimmed glasses, sits at his desk, holding a model of some kind of molecule — sticks attached to yellow and white balls arranged to form a three-dimensional grid thing.

Gerald Stringfellow’s bright idea

The legacy of the U’s mastermind behind LED-based technology was honored in a video from the National Academy of Inventors.