NEW PHOSPHORS, SUCH AS NEW RED-EMITTING LINE-EMISSION PHOSPHORS, FOR SOLID SOURCE OF LIGHT

FIELD: lighting.SUBSTANCE: lighting device 100 includes a light source 10 and a luminescent material 20 converting at least a portion of the emition 11 from the source 10 to emition 51. Source 10 includes a light emitting diode. Luminescent material 20 includes phosphor 40 having structure of UCrC, or an ordered version of UCrCaristotype, or structure NaLiSiOor structure KLiGeOhaving the formula: MZABCDENO: ES, RE(I), in which M is selected from the group consisting of Ca, Sr, and Ba; Z, is selected from the group consisting of Na, K and Rb; A is selected from the group consisting of Mg, Zn and Cd; B is selected from the group consisting of B, Al and Ga; C is selected from the group consisting of tetravalent Si, Ge, Ti, and Hf; D is selected from the group consisting of monovalent Li and Cu; E, is selected from the group consisting of P, V, Nb and Ta; ES is selected from the group consisting of divalent Eu, Sm and Yb; RE, is selected from the group consisting of trivalent Ge, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm; 0≤x≤0.2; 0≤y≤0.2; 0≤x+y≤0.4; 0≤z