A semi-conductor light-emitting diode (LED) is a solid-state device that can emit light when an electric current flows through it. The LED usually features a small area chip (less than 1mm2), covered with an encapsulant that helps improve the light extraction efficiency and shape its radiation pattern. The color (or wavelength ) of the emitted light depends on the selected material systems and materials composition, and can be designed to occur in the infrared, visible or ultraviolet (UV) ranges of the electromagnetic spectrum.
Ultraviolet (UV) light refer to the optical radiations with wavelengths shorter than 400 nm. The relevant light sources are fabricated using aluminum indium gallium nitride (AlInGaN) semiconductor materials. Unlike their conventional mercury-based counter-parts, these solid-state devices are compact, robust, consume less power and are environmentally friendly. They also offer long lifetime, wavelength tunability over a broad range, and provide a low-cost technology for large-scale productions. Researchers at Nitek Inc. have been involved in developing this technology over the last twenty years and they pioneered many innovations in the field.
Nitek’s products are based on their proprietary and patented material and device technologies. These include novel switch material growth, micropixel light emitting diode and lamps.