Crystal configuration, luminescence dynamics and facile combustion-fabrication of high-brightness YAG:Sm3+ nanomaterials towards competent illuminating appliances, especially WLEDs and solar-cells

Highlights: • Sm³⁺-activated garnet-alike Y₃Al₅O₁₂ nanomaterials have been fabricated via a low temperature solution combustion route. • Absolute YAG phase development has been confirmed via XRD-facilitated Rietveld refinement technique. • Various refined crystal-lattice parameters have been determined. • Down-conversion PL has been thoroughly scrutinized via PL spectra, decay-time, quantum-efficiency and color parameters. • Potential candidate for warm-WLEDs, bio-imaging, security-inks, signage, horticulture and solar-cells. New Sm³⁺-activated YAG nanomaterials have been fabricated via low-temperature solution-combustion method, to advance the quality of multi-phase wLEDs (white-light-emitting diodes). Cubic-phase has been configured via XRD-facilitated Rietveld technique. Fine orange-red luminescence with high color-purity and quantum-efficiency, has been attained via energization of 429 nm wavelength, such that x = 0.02 Sm³⁺ content has been spotted as the best possible doping-content. Obtained orange-red-coordinates (0.5868, 0.4088) are proximate to commercialized AMBER LED-NSPAR 70 BS. (NICHIA CORP.). All in all, the fabricated materials can certainly be implemented for solid-state illumination appliances, mainly warm-WLEDs, bio-imaging, security-inks, signage and solar cells.