Synthesis, structural, optical and electrical (DC) properties of a semiorganic Thiourea Barium Chloride (TBC) single crystal
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Date
2017
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Elsevier GmbH journals@elsevier.com
Abstract
In the present study, TBC single crystals were synthesized using solution evaporation method. The structural analysis of TBC crystal was studied using Powder X-ray diffraction. Optical properties of TBC crystals were carried out using UV–vis, FTIR, Raman and photoluminescence (PL) spectra. The crystal shows absorbance maxima at 209 nm and transparent in the visible region 300–900 nm. The various optical constants such as refractive index, reflectance, speed of light, extinction coefficient, electrical susceptibility, dielectric constant, optical and electrical conductivity were evaluated. Thus results revealed that all these optical constants shows a strong dependence on optical absorption coefficient. Using single oscillator model (Wemple ?Didomenico), lattice dielectric constant and the ratio of free charge carrier to their effective mass were evaluated. The PL study of TBC crystals shows two emission peaks (419 nm ?S, 441 nm- Ba) in blue region. The DC resistivity and conductivity of the crystal was investigated in the temperature range 26 °C–115 °C. © 2017 Elsevier GmbH
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Keywords
Barium, Chlorine compounds, Electric conductivity, Electromagnetic wave absorption, Fourier transform infrared spectroscopy, Light absorption, Optical constants, Photoluminescence, Refractive index, Single crystals, Thioureas, X ray diffraction, Barium chloride, Electrical conductivity, Extinction coefficients, Non-linear optical, Optical absorption coefficients, Photoluminescence spectrum, Powder X ray diffraction, Single-oscillator model, Optical properties
Citation
Optik, 2017, 145, , pp. 436-447