Abstract
Color tunable nanophosphors are still largely favored materials for easy fabrication of white LEDs (light emitting diodes) with exemplary attributes like color reproducibility, purity and better quantum efficiency. Herein, we report a unique down-conversion color tunable Sm3+ doped SrLaAlO4 nanomaterial, synthesized by urea combustion approach. Crystal structure was studied systematically by powder X-ray diffractometry and Rietveld Analysis. Under near UV irradiation, the nanophosphor showed scarlet emission with a high color purity (82.16%) and quantum efficiency (77.86%). Color coordinates justified the versatile luminescence from blue to white to scarlet region effectively, thus widen the new prospects for NUV-excited white LEDs.
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