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Structural Properties and Luminescence Characteristics of Eu3+ Doped Lithium Triborate (LiB3O5) Phosphors

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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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Keywords: Lithium Triborate; Luminescence; PAS; Phosphor

Document Type: Research Article

Affiliations: 1: División de Ciencias e Ingenierías, Universidad de Guanajuato, Campus León, Loma del Bosque 103, Colonia Lomas del Campestre, 37150 León, Gto., México 2: Department of Science and Humanities, Sri Shanmugha College of Engineering and Technology, Sankari, Salem 637304, Tamil Nadu, India 3: División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Campus Guanajuato, Cerro de la Venada S/N, Pueblito de Rocha, C.P. 36040 Guanajuato, Gto., México 4: Centro de Investigaciones en Optica A.P.1-94. León, Gto., México

Publication date: September 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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