LiPbB₅O₉:Eu³⁺ phosphors were synthesized via solid-state reaction technique and studied various properties. For the prepared LiPbB₅O₉:Eu³⁺ phosphors, structural and spectroscopic characterizations were performed. Crystallinity nature of LiPbB₅O₉:Eu³⁺ phosphors was investigated from X-ray diffraction (XRD) analysis. Functional group investigations and maximum phonon energies of LiPbB₅O₉:Eu³⁺ phosphor were studied via Fourier transform infrared spectroscopy (FTIR) analysis. The thermogravimetric (TG-DSC) analysis for LiPbB₅O₉:0.07Eu³⁺ phosphor precursor was carried out in N₂ atmosphere up to 800 °C. From the TG-DSC analysis, weight loss of the precursor with temperature and endothermic temperatures was studied. The optical band gaps of LiPbB₅O₉:xEu³⁺ phosphors for distinct Eu³⁺ ions concentrations were found using diffuse reflectance spectra (DRS) analysis. Excitation spectra of LiPbB₅O₉:Eu³⁺ phosphors were recorded at monitoring emission λ_emi = 614 nm wavelength, and emission spectra were recorded by monitoring excitation wavelength λ_exc = 393 nm. Energy transfer analysis of LiPbB₅O₉:Eu³⁺ phosphor was studied with the Blasse and Dexter theories. Fluorescence lifetime decay curves of ⁵D₀ level of Eu³⁺ ions were analyzed at the above-mentioned excitation and emission wavelengths. From the emission spectral data, the CIE color coordinates and correlated color temperatures (CCT) were estimated. From the above investigations, it can be mentioned that LiPbB₅O₉:Eu³⁺ phosphors find significant applications in white light emitting diodes as a red emitting phosphor.

通过固相反应技术合成了LiPbB ₅ O ₉：Eu ³⁺荧光粉，研究了其各种性能。对于制备的LiPbB ₅ O ₉：Eu ³⁺荧光粉，进行了结构和光谱表征。通过X射线衍射（XRD）分析研究了LiPbB ₅ O ₉：Eu ³⁺荧光粉的结晶性。通过傅立叶变换红外光谱（FTIR）分析研究了LiPbB ₅ O ₉：Eu ³⁺荧光粉的官能团研究和最大声子能量。LiPbB的热重分析（TG-DSC）在最高800°C的N ₂气氛中进行₅ O ₉：0.07Eu ³⁺荧光粉前体。通过TG-DSC分析，研究了前体在温度和吸热温度下的重量损失。使用扩散反射光谱（DRS）分析发现了LiPbB ₅ O ₉：xEu ³⁺荧光粉对于不同Eu ³⁺离子浓度的光学带隙。LiPbB的激发光谱₅ ø ₉：Eu的³⁺磷光体在记录监测发射λ _EMI  = 614纳米波长，而发射光谱通过监测激发波长记录λ _EXC  = 393纳米。利用Blasse和Dexter理论研究了LiPbB ₅ O ₉：Eu ³⁺荧光粉的能量转移分析。在上述激发和发射波长下分析了Eu ³⁺离子的⁵ D ₀能级的荧光寿命衰减曲线。从发射光谱数据中，可以估算出CIE色坐标和相关色温（CCT）。从上述研究中，可以提到LiPbB ₅ O ₉：Eu ³⁺磷光体作为发射红光的磷光体在白光发光二极管中发现了重要的应用。