Koninklijke Philips Corporation N.v.

Lumileds LLC

Philipp Alexander Hubert Pust

Peter Josef Schmidt

Volker Weiler

Wolfgang Schnick

Detlef Uwe Wiechert

Cora Sieglinde Hecht

Sebastian Florian Schmiechen

Frauke Charlotte Hintze

The invention provides 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 luminescent material () comprises a phosphor (), wherein this phosphor comprises an alkaline earth aluminum nitride based material having a cubic crystal structure with T5 supertetrahedra, wherein the T5 supertetrahedra comprise at least Al and N, and wherein the alkaline earth aluminum nitride based material further comprises a luminescent lanthanide incorporated therein.

Supertetrahedron phosphor for solid-state lighting

The invention provides, amongst others for application in a lighting unit, a phosphor having the formula MZABCDENO:ESRE(I), with M=selected from the group consisting of Ca, Sr, and Ba; Z=selected from the group consisting of monovalent Na, K, and Rb; A=selected from the group consisting of divalent Mg, Mn, Zn, and Cd; B=selected from the group consisting of trivalent B, Al and Ga; C=selected from the group consisting of tetravalent Si, Ge, Ti, and Hf; D=selected from the group consisting of monovalent Li, and Cu; E=selected for the group consisting of P, V, Nb, and Ta; 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; 0&#x2266;x&#x2266;0.2; 0&#x2266;y&#x2266;0.2; 0&#x3c;x+y&#x2266;0.4; 0&#x2266;z&#x3c;1; 0&#x2266;n&#x2266;0.5; 0&#x2266;a&#x2266;4 (such as 2&#x2266;a&#x2266;3); 0&#x2266;b&#x2266;4; 0&#x2266;c&#x2266;4; 0&#x2266;d&#x2266;4; 0&#x2266;e&#x2266;4; a+b+c+d+e=4; and 2a+3b+4c+d+5e=10&#x2212;y&#x2212;n+z.

Phosphors, such as new narrow-band red emitting phosphors for solid state lighting

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Aachen, Germany

Philipp Alexander Hubert Pust