Los Angeles CA (SPX) Apr 29, 2026

A new study describes a perovskite diode that achieves 26.7% power-conversion efficiency when operated as a solar cell and 31% external quantum efficiency when operated as a light-emitting diode, performance levels that would be considered strong for a device designed to do only one of those things.
Metal-halide perovskites are a class of semiconductor materials named for their distinctive














