摘要:
A ferrous-metal-alkaline-earth-metal mixed silicate based phosphor is used in form of a single component or a mixture as a light converter for a primarily visible and/or ultraviolet light emitting device. The phosphor has a rare earth element as an activator. The rare earth element is europium (Eu). Alternatively, the phosphor may have a coactivator formed of a rare earth element and at least one of Mn, Bi, Sn, and Sb.
摘要:
The invention relates to a method for producing illuminants of formula (I) BawSrxCaySiO4 : zEu 2+ (I) wherein w + x + y + z = 2 and 0.005 ≤ z ≤ 0.3 holds good. The invention also relates to a lighting unit, and to the use of the illuminant as an LED conversion illuminant for white LEDs or for so-called colour-on-demand applications.