By mimicking the jagged structure of a lightning bug’s “lantern” in a layer on top of existing LEDs, the amount of light from the semiconductor device can be increased up to 55 percent.
Much of the light produced by LEDs gets reflected back into the device due to large differences between how light travels through the LED materials compared to air. This reduces “drastically the efficiency of LEDs,”
Here is the interesting part, similarly jagged material that they added to a standard gallium-nitride LED increased the amount of light that shone from the device by up to 55 percent!
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