General Electric Company

Pransanth Kumar Nammalwar

Anant Achyut Setlur

Emil Vergilov Radkov

Claire Susan Henderson

Ramachandran Gopi Chandran

Embodiments of the present techniques provide a related family of phosphors that may be used in lighting systems to generate blue or blue-green light. The phosphors include systems having a general formula of: ((SrM)ACe)(AlSi)OF(I), wherein 0&#x3c;x&#x2266;0.10, 0&#x2266;y&#x2266;0.5, 0&#x2266;z&#x2266;0.5, 0&#x2266;w&#x2266;x, A is Li, Na, K, Rb, or Ag or any combinations thereof, and M is Ca, Ba, Mg, Zn, or Sn or any combinations thereof. Advantageously, phosphors made accordingly to these formulations maintain emission intensity across a wide range of temperatures. The phosphors may be used in lighting systems, such as LEDs and fluorescent tubes, among others, to produce blue and blue/green light. Further, the phosphors may be used in blends with other phosphors, or in combined lighting systems, to produce white light suitable for illumination.

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Bengaluru, India

Pransanth Kumar Nammalwar