White Light Production from Blue LEDs: the Synthesis of Small Particle YAG: Ce Type Phosphors for Solid State Lighting
Three different synthetic routes to the production of small particle cerium activated yttrium aluminium garnet ( YAG: Ce) phosphors are reported. These YAG: Ce phosphors emit yellow light when excited by blue emitting LEDs, with the resulting phosphor conversion LEDs (pcLEDs) generating white light from the mixture of the yellow and blue. The dependence of the colour point of the pcLED emission on the loading of the YAG: Ce phosphor is explained. Methods of changing this by the addition of co-activators to modify the lattice composition are also reported. Efficiency measurements on these YAG: Ce phosphors as a function of Ce3+ concentration, firing temperature and exciting wavelength are presented and discussed.
YAG: Ce Phosphors White Light Production pcLED
Jack Silver Robert Withnall George Fern Anthony Lipman
Wolfson Centre for Materials Processing, Brunei University,Uxbridge, Middlesex UBS 3PH, UK
国际会议
上海
英文
306-310
2007-03-12（万方平台首次上网日期，不代表论文的发表时间）