Solanki Diksha, Devi Poonam, Dalal Hina, Sehrawat Neeraj, Kumar Mukesh, Kumar Surendra, Malik Rajesh Kumar
Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India.
Department of Chemistry, Vaish College, Rohtak, 124001, India.
J Fluoresc. 2025 Jun;35(6):4773-4788. doi: 10.1007/s10895-024-03863-x. Epub 2024 Aug 10.
An efficient urea-assisted SC (solution-combustion) approach was used to synthesize a novel series of doped CaBiPO: 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.
采用一种高效的尿素辅助溶液燃烧法合成了一系列新型的掺杂CaBiPO:xDy纳米磷光体（0.01 - 0.1摩尔）。使用结构和光学测量方法对粉末材料进行了全面研究。“Rietveld精修”研究发现，所制备的纳米磷光体形成了具有P -1三斜空间群的三斜晶系。进行了能谱分析（EDS）以确定掺杂纳米磷光体中各组成元素的相应比例。透射电子显微镜（TEM）显示纳米级尺寸的聚集颗粒。光致发光激发（PLE）光谱表明，所指示的磷光体可由近紫外（NUV）照明源激发。Dy离子从（F → H和F → H）的跃迁被识别为光致发光（PL）光谱，在353 nm激发下，相应地在481和577 nm处出现蓝黄带。此外，PL数据用于确定诸如相关色温（CCT）、色度坐标（CC（x & y））和色纯度（CP（%））等光度学指标，支持它们在固态照明和潜在指纹识别应用中的使用。
