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AssigneeKoninklijke Philips N.V.
InventorsPeter Josef Schmidt, Philipp-Jean Strobel, Sebastian Florian Schmiechen, Cora Sieglinde Hecht, Volker Weiler, Wolfgang Schnick
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The invention provides, amongst others for application in a lighting unit, a phosphor selected from the class of M2D2C2-2bBbA2N6:Ln (I) with M=selected from the group consisting of divalent Ca, Sr, and Ba; D=selected from the group consisting of monovalent Li, divalent Mg, Mn, Zn, Cd, and trivalent Al and Ga; C=selected from the group consisting of monovalent Li and Cu; B=selected from the group consisting of divalent Mg, Zn, Mn and Cd; A=selected from the group consisting of tetravalent Si, Ge, Ti, and Hf; Ln=selected from the group consisting of ES and RE; ES=selected from the group consisting of divalent Eu, Sm and Yb; RE=selected from the group consisting of trivalent Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Tm; and 0≤b≤1.
A lighting unit comprising a light source, configured to generate light source light and a luminescent material configured to convert at least part of the light source light into luminescent material light, wherein the light source comprises a light emitting diode (LED), and wherein the luminescent material comprises a phosphor selected from the class of
A phosphor selected from the class of
A method for making a phosphor, the method comprising steps of:
Dependencies are inferred from the claim text.