WHITE LIGHT EMITTING DIODES INCLUDING YELLOW EMITTING ??3+ DOPED CALCIUM SILICATE PHOSPHOR

摘要

the present invention includes a phosphor for a white LED to be written specifically Ca _{2 -xz} SiO ₄ : Ce ^{3 +} _x , _{N ⁺ z (x is 0 & x 0.5, z is 0 & z 0.5, N = Li, Na, K, at least one of Rb) Ce represented by ^{3 +} relates to a light emitting diode using a calcium silicate-based phosphor is revived. Phosphor of the present invention exhibits light emission of blue light emitting diodes based on existing InGaN- GaN- based and this is a wide spectrum by a long wavelength ultraviolet LED. ; light-emitting diode using a phosphor according to the present invention is more than that having a spectrum in a wide wavelength using Eu ^{2 +} resurrected silicate-based phosphor of manufacturing a white light emitting diode may represent a high color rendering index. ; White, emitting, diode, Ce resurrection calcium silicate-based phosphor, a yellow phosphor}