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Effect of Synthesis Temperature on Morphological and Luminescent Properties of Lithium Fluoride Crystals

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The precipitation method was used to synthesize pure lithium fluoride crystals using water as solvent at different synthesis temperature, from 10 to 90 °C. The effect of temperature on crystalline structure, sizes of cube like particles, and the luminescent response is reported. The synthesized materials were characterized by scanning electron microscopy and their morphology and size distributions were determined. Particle sizes were found to be dependent on the synthesis temperature, varying from 1.38 to 9.01 μm. A single cubic crystalline phase was determined by X-ray diffraction (XRD) for all synthesized samples. The photoluminescence (PL) spectra as well as UV-Vis absorbance were also analyzed and showed a clear dependence with the particle size. The thermoluminescent (TL) response to X-ray irradiation was studied for an exposition of 43 R. A TL intensity dependence of lithium fluoride crystals with the synthesis temperature is observed. The micro crystalline cube size can be controlled by varying the synthesis temperature.
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Keywords: LiF Crystals; Luminescent Properties; Synthesis Temperature

Document Type: Research Article

Affiliations: 1: Universidad de Guanajuato, Campus León, División de Ciencias e Ingenierías, Loma del Bosque 103, Colonia Lomas del Campestre, 37150 León, Gto., México 2: Universidad de Guanajuato, Campus Guanajuato, División de Ciencias Naturales y Exactas, Cerro de la Venada S/N, Pueblito de Rocha, C.P. 36040 Guanajuato, Gto., Méxic 3: Universidad Autónoma de Santo Domingo, Departamento de Física, Facultad de Ciencias, Ciudad Universitaria, Santo Domingo, 11114, República Dominicana 4: Grupo de Espectroscopia de Materiales Avanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Óptica, A.P. 1-948, León, Gto., México

Publication date: August 1, 2017

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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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