2016-01-13

U.S. Researchers Unveil Oxygen’s Role in Strengthening Red LEDs

In the fabrication of solid state lighting devices, scientists are learning, oxygen also plays a two-edged role. While oxygen can impede the effectiveness of gallium nitride (GaN), an enabling material for LEDs, small amounts of oxygen in some cases are needed to enhance the devices' optical properties. GaN doped with europium (Eu), which could provide the red color in LEDs and other displays, is one such case.
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Stanley Electric Co., Ltd. (Head Office: 2-9-13 Nakameguro, Meguro-ku, Tokyo; President and CEO: Yasuaki Kaizumi) has significantly improved the emission efficiency of its UV-C LEDs at a wavelength of 265nm—widely recognized as the most ... READ MORE

Nichia, the world's largest LED / Laser Diode manufacturer and inventor of the high-brightness blue and white LEDs, has confirmed a reduction in product waste and an increase in sales through a pilot test conducted in a retail garden cente... READ MORE