Aluminium Phosphide (InGaAIP) led in part by Toshiba’s creation of LED Residential Light Fixtures that “reflected 90% or more of the generated light”. In addition, during this same period, it was discovered that different colors, including “white” (although a “true” white light was only recently produced through the use of an organic LED (OLED) by Cambridge Display Technology, in the U.K.) could be produced through “adjustments in the size of the energy band gap” when Indium Gallium Aluminium Phosphide (InGaAIP) was used, much in part because of the work of Shuji Nakamura of Nichia Corporation, who developed the world’s first blue LED in 1993. Today, this technology is used to produce LEDs that even emit “exotic colors” such as pink, purple and aqua as well as “genuine ultra-violet ‘black’ light.
