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Updated: Jan 26, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Structural Properties and Luminescence Characteristics of Eu3+ Doped Lithium Triborate (LiB₃O5) Phosphors
D Senthil Kumar1, K Boobalan2, T Swarna Priya1
1División de Ciencias e Ingenierías, Universidad de Guanajuato, Campus León, Loma del Bosque 103, Colonia Lomas del Campestre, 37150 León, Gto., México.
Abstract:
Lithium triborate LiB₃O5:Eu has been prepared by precipitation assisted high-temperature solid state (PAS) reaction method using lithium hydroxide (LiOH), boric acid (H₃BO₃) and europium chloride (EuCl₃). The as prepared powders were calcined at various temperatures. As prepared and calcined powders were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectrometry (EDS), UV-Vis spectrometry and Photoluminescence (PL). The XRD profiles of the powder products revealed the presence of crystalline phase at 650 °C. Increasing bandgap with increasing dopant concentration was studied by UV-Vis spectra. The effect of dopant concentration on photoluminescence properties of LiB₃O5 was also studied. The optimized Eu3+ dopant concentration for potential luminescent LiB₃O5 phosphor was 0.25 mol%.
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