Zeroing in on the Elusive Green LED (2 of 2) (IMAGE)

Rensselaer Polytechnic Institute

Zeroing in on the Elusive Green LED (2 of 2)

Caption

Researchers at Rensselaer Polytechnic Institute have developed a new method for manufacturing green LEDs with greatly enhanced light output. Led by Professor Christian Wetzel, the research team etched a nanoscale pattern at the interface between the LED’s sapphire base and the layer of gallium nitride (GaN) that gives the LED its green color. Overall, the new technique results in green LEDs with significant enhancements in light extraction, internal efficiency, and light output.

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Rensselaer/Robbins

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