COMPOSITE MATERIALS HAVING RED EMITTING PHOSPHORS

A lighting apparatus includes an LED light source radiationally coupled to a composite material including a phosphor of formula (I) and a thermally conductive material dispersed in at least a portionof a binder material. The thermally conductive material includes a material selected from the group consisting of indium oxide, tin oxide, indium tin oxide, calcium oxide, barium oxide, strontium oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, diamond, graphene, polyethylene nanofibers, carbon nanotubes, silver metal nanoparticles, copper metal nanoparticles, gold metal nanoparticles, aluminum metal nanoparticles, boron nitride, silicon nitride, an alkali metal halide, calcium fluoride, magnesium fluoride, a compound of formula (II), and combinations thereof. 照明装置包括辐射连接于复合材料的LED光源，所述复合材料包括分散在至少一部分粘结材料中的式I的磷光体和导热材料。导热材料包括选自以下的材料：氧化铟、氧化锡、氧化铟锡、氧化钙