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Korean team skips step, brightens perovskite LEDs
Korean team skips step, brightens perovskite LEDs SEOUL, November 06 (AJP) - South Korean chemists have found a way to build more efficient perovskite light-emitting diodes without a separate chemical treatment step that the technology has long needed, Kookmin University said Friday. The new light-emitting diodes (LEDs) turned about 11 of every 100 electrons sent through them into light that escaped the device. That external quantum efficiency of 11.4 percent is higher than 2.7 percent for devices built from conventionally made c November 6, 2026