Structural and Luminescent Properties of Dy(III) Doped Ca 0.5 Bi 3 P 2 O 10 Nanophosphors for Solid-State Lighting & Latent Fingerprinting Applications

• Published in: Journal of fluorescence
• Main Authors: Solanki, Diksha, Devi, Poonam, Dalal, Hina, Sehrawat, Neeraj, Kumar, Mukesh, Kumar, Surendra, Malik, Rajesh Kumar
• Format: Journal Article
• Language: English
• Published: Netherlands 10.08.2024
• Subjects: Latent fingerprinting; Nanophosphors; PLE; Solid-state lighting
• ISSN: 1573-4994

An efficient urea-assisted SC (solution-combustion) approach was used to synthesize a novel series of doped Ca Bi P O : xDy nanophosphors (0.01-0.1 mol). The powdered materials were thoroughly investigated using structural and optical measures. 'Rietveld refinement' investigations found that the produced nanophosphor formed a triclinic system with the P -1 triclinic space group. An EDS (energy-dispersive spectral) study was conducted to determine the corresponding proportions of constituent elements of doped nanophosphors. The TEM (transmission electron microscopy) revealed aggregated particles with a standard size on the nanoscale. The PLE (Photoluminescence excitation) spectrum indicates that the indicated phosphors can be stimulated by NUV (near ultraviolet) illumination sources. The Dy -ions undergo transitions from ( F  →  H & F  →  H ) were recognized as (PL) spectra with an excitation of 353 nm revealed the presence of blue-yellow bands at 481, and 577 nm, correspondingly. Further, PL data was used to determine photometric metrics such as CCT (correlated color-temperature), CC (chromaticity-coordinates (x & y)), and CP (color-purity (%)), supporting their use in solid-state lighting and latent fingerprinting applications.