Growth, characterization and vibrational spectroscopy of (NH4)2NixMn(1−x)(SO4)2.6H2O:Nd crystals

Pacheco, Tiago S.; Ludwig, Zélia M.C.; Ghosh, Santunu; Oliveira, Victor Hugo de; Sant’Anna, Diogo R; Costa, C. B.; Lopes, Rafael; Oliveira, Sukarno O; Pierre, Tatiana D. Saint’; Sousa, Rafael Arromba de; Paiva, Edinei Canuto

doi:10.1088/2053-1591/ab2bbd

Cited by 12 publications

(4 citation statements)

References 44 publications

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“…It can be seen from the DTA curve of Figure 1 that each mass loss is accompanied by endothermic peaks. Analyzing the degradation processes of samples AMgSH:Ag, ANiSH:Ag, and ANiSH:B, shown in Figure 1a− Comparing the initial degradation temperature, we observed an increase in the samples ANiSH:B and ANiSH:Ag, with temperature gains of 39 and 36 °C, respectively, while the dehydration temperature of the pure crystal (NH 4 ) 2 Ni(SO 4 ) 2 • 6H 2 O was 96 °C, as reported by Pacheco et al 7 For sample AMgSH:Ag, the temperature gain was 24 °C compared to the similar pure crystal, which is 70 °C, as reported by Souamti et al 20 Raman measurements in the range of 100−3500 cm −1 were performed in all samples, as shown in Figure 2, using an excitation laser of 632.8 nm. These crystals have 234 normal vibrational modes, considering the structure of SO 4 , NH 4 , H 2 O, and M(H 2 O) 6 groups, including three acoustic modes, being 1A u + 2B u .…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃

et al. 2023

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In this work, we synthesized and studied the spectroscopic properties of (NH 4 ) 2 (SO 4 ) 2 Y(H 2 O) 6 (Y = Ni, Mg) crystals doped with AgNO 3 or H 3 BO 3 . These crystals constitute a series of hexahydrated salts known as Tutton salts. We investigated the influence of dopants on the vibrational modes of the tetrahedral ligands NH 4 and SO 4 , octahedral complexes Mg(H 2 O) 6 and Ni(H 2 O) 6 , and H 2 O molecules present in these crystals through Raman and infrared spectroscopies. We were able to identify bands that are attributed to the presence of Ag and B dopants, as well as band shifts caused by the presence of these dopants in the crystal lattice. A detailed study of the crystal degradation processes was performed by thermogravimetric measurements, where there was an increase in the initial temperature of crystal degradation due to the presence of dopants in the crystal lattice. Raman spectroscopy of the crystal residues after the thermogravimetric measurements helped us to elucidate the degradation processes occurring after the crystal pyrolysis process.

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Section: Resultsmentioning

confidence: 99%

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃

et al. 2023

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“…Even in the present times, it has been interesting to investigate properties of hydrogen bonded single crystals of double sulphates through different aspects [6,7]. Lim [6] has reported thermodynamic properties and phase transitions of Tutton salt.…”

Section: Introductionmentioning

confidence: 99%

“…Lim [6] has reported thermodynamic properties and phase transitions of Tutton salt. Pacheco et al [7] have reported growth, characterization and vibrational spectroscopy of mixed Tutton salt. The Tutton salt crystals have also been found to be phase change materials (PCM) and have been used for thermal energy storage applications by Sharma et al [8].…”

Section: Introductionmentioning

confidence: 99%

Ordinary light induced polarization zones in Tutton salt crystal

Pandey,

Pant,

Pandey

2023

J. Phys.: Conf. Ser.

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Ordinary light wave passing through a low symmetry crystal along an off optic -axis direction gets split into ordinary and extra-ordinary waves. If the beam size is large, the two polarized waves could overlap covering a large volume within the medium. It is realized that overlapping ordinary and extra-ordinary waves, result in creation of alternate polarization regions with different fluctuating crystalline fields inside a low - symmetry hydrated crystal. If suitable ions are doped in an experimental crystal, their optical absorption spectra could reflect the effect of alternate polarization fields and creation of ordinary light induced periodic polarization (OLIPP) effect inside a low symmetry hydrated crystal.

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“…Devices based on solarized photo detectors are for UV illumination filters, sniper shoot detection and revolutionary attack surveillance. During the preceding fewer period, there are greater number of published work on the optical characterization [8][9][10][11] and vibrational spectroscopy [12][13][14][15][16][17] of the blended and purest unit of Tutton's salt.…”

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confidence: 99%

Synthesis, Studies of Inorganic Class of Mohrite (MOH) Crystals for Electrical, Electronic, Photonic, Phase Matching and Sensor Utilities by Theory and Practice

K.,

R.,

et al. 2024

ECS J. Solid State Sci. Technol.

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The high-quality single crystals of Mohrite (MOH) with dimensions 7 x 6 x 3 mm3 were productively grown-up by the customary solution growth modus-operandi. The fully grown crystals were focused to the appropriate structural, optical and electrical investigations. The monoclinic nature of the specimen with P21/c as the space group and lattice parameters are a as 6.2385Å, b as 12.6076Å, c as 9.2655 Å and beta is 106.526o . The crystalline structural authentication with single crystal XRD analysis and compared the same with software based associated results. FITR spectra reveal the vibrational modes of as grown crystals. Optical absorption spectral data divulges that the as-grown crystalline sample has higher optical transparent nature in the visible-NIR region. Photoluminescence intensity is remarkably enriched, shows high crystallinity of MOH. The results of UV, PL, electrical and photo conductivity, SEM, theoretical studies suggest MOH in photonic utility and device appliances especially in UV filters and in electronic filters, room temperature based sensor study for MOH is enabled and reported for red LED based work.

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Growth, characterization and vibrational spectroscopy of (NH₄)₂Ni_xMn_(1−x)(SO₄)_2.6H₂O:Nd crystals

Cited by 12 publications

References 44 publications

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃

Ordinary light induced polarization zones in Tutton salt crystal

Synthesis, Studies of Inorganic Class of Mohrite (MOH) Crystals for Electrical, Electronic, Photonic, Phase Matching and Sensor Utilities by Theory and Practice

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Growth, characterization and vibrational spectroscopy of (NH4)2NixMn(1−x)(SO4)2.6H2O:Nd crystals

Cited by 12 publications

References 44 publications

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO3 or H3BO3

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO3 or H3BO3

Ordinary light induced polarization zones in Tutton salt crystal

Synthesis, Studies of Inorganic Class of Mohrite (MOH) Crystals for Electrical, Electronic, Photonic, Phase Matching and Sensor Utilities by Theory and Practice

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Growth, characterization and vibrational spectroscopy of (NH₄)₂Ni_xMn_(1−x)(SO₄)_2.6H₂O:Nd crystals

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃

Synthesis, Thermal Analysis, Spectroscopic Properties, and Degradation Process of Tutton Salts Doped with AgNO₃ or H₃BO₃