Fabrication of LED based on III-V nitride and its applications

Short wavelength LED (TG Purple) based on III‐V nitride semiconductors is established in addition to blue and green. This short wavelength LED is realized by adjusting the “indium” chemical content of the well layer. Light output power of “TG Purple” is high and FWHM is narrow. “TG Purple” is applied to light sources of white LED. Combination of “TG Purple” and various phosphors can generate white light with high luminous intensity and good color rendering. “TG Purple” is also applied to light sources of air‐purifiers. Air‐purifiers have become standard equipments for luxury‐car models. Also, several applications of this system are widely utilized in room air conditioners and refrigerators. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)