Ba3P5N10Br:Eu(2+): a natural-white-light single emitter with a zeolite structure type

Illumination sources based on phosphor-converted light emitting diode (pcLED) technology are nowadays of great relevance. In particular, illumination-grade pcLEDs are attracting increasing attention. Regarding this, the application of a single warm-white-emitting phosphor could be of great advantage. Herein, we report the synthesis of a novel nitridophosphate zeolite Ba3P5N10Br:Eu(2+). Upon excitation by near-UV light, natural-white-light luminescence was detected. The synthesis of Ba3P5N10Br:Eu(2+) was carried out using the multianvil technique. The crystal structure of Ba3P5N10Br:Eu(2+) was solved and refined by single-crystal X-ray diffraction analysis and confirmed by Rietveld refinement and FTIR spectroscopy. Furthermore, spectroscopic luminescence measurements were performed. Through the synthesis of Ba3P5N10Br:Eu(2+), we have shown the great potential of nitridophosphate zeolites to serve as high-performance luminescence materials.