Synthesis, crystal structure and luminescence in Ca3Al2O6

Gedekar, K.A.; Wankhede, S. P.; Moharil, S. V.; Belekar, R.M.

doi:10.1007/s10854-018-8603-5

Cited by 11 publications

(4 citation statements)

References 21 publications

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“…In Ca 3 Al 2 O 6 , whose formation is evident from the in situ HE - SXRD, the tetrahedral [AlO 4 ] rings are connected by Ca 2+ ions. As per the literature, six different Ca sites exist. Three of them, Ca(1–3), form subcell (A), and Ca(4–6) form subcell (B).…”

Section: Resultsmentioning

confidence: 95%

Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

et al. 2022

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The crystallization in glasses is a paradoxical phenomenon and scarcely investigated. This work explores the non-isothermal crystallization of a multicomponent alumino-borosilicate glass via in situ high-energy synchrotron X-ray diffraction, atomic pair distribution function, and Raman spectroscopy. Results depict the crystallization sequence as Ca 3 Al 2 O 6 and CaSiO 4 followed by LiAlO 2 with the final compound formation of Ca 3 B 2 O 6 . These precipitations occur in a narrow temperature range and overlap, resulting in a single exothermic peak in the differential scanning calorimetry thermogram. The concurrent nucleation of Ca 3 Al 2 O 6 and CaSiO 4 is intermediated by their corresponding hydrates, which have dominantly short-range order. Moreover, the crystallization of LiAlO 2 and Ca 3 B 2 O 6 is strongly linked with the changes of structural units during the incubation stage in non-isothermal heating. These findings clarify the crystallization of multicomponent glass, which have been inferred from ex situ reports but never evidenced via in situ studies.

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Section: Resultsmentioning

confidence: 95%

Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

et al. 2022

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“…The absorption peaks at 3420 and 1603 cm À1 can be assigned to the stretching vibration and bending vibration of OH groups of H 2 O. 49 The bands at 1114 and 454 cm À1 can be attributed to the Fe-O stretching vibration modes in Fe 2 O 3 . This FTIR results indicate the formation of Fe 2 O 3 in the present outcome, which are reliably matched with XRD patterns.…”

Section: Characterization Results Of Synthesized Rhombohedral Fe 2 O mentioning

confidence: 99%

Hydrothermal synthesis, characterization and enhanced photocatalytic activity and toxicity studies of a rhombohedral Fe₂O₃nanomaterial

et al. 2019

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“…Recently, significant efforts have been made by several research groups on the synthesis and study of various Ce 3+ -doped fluoride and oxide materials. [12][13][14] The first white LED was commercialized by the Nichia Company, [15] in which a blue LED was coated with the yellowish phosphor YAG:Ce. The Ce 3+ O 19 samples demonstrated a promising broad emission band that was centred at 355, 320, 330, and 317 nm, respectively.…”

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confidence: 99%

“…These host crystal structures had great influence on the prominent emission peaks of aluminate-based phosphors. [15] The photoluminescence (PL) emission spectra of the LiAl 5 O 8 and NaAl 11 O 17 phosphors were studied by Nikhare et al [16] and strong Ce 3+ emission was observed at $310 nm for the excitation at a wavelength of 254 nm due to the 5d!4f transition.…”

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confidence: 99%

Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system

et al. 2022

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The present communication is strongly focused on the investigation of synthesis, structural and luminescence properties of cerium (Ce 3+ )-and europium (Eu 3+ )activated Zn 4 Al 22 O 37 phosphors. Ce 3+ -and Eu 3+ -doped Zn 4 Al 22 O 37 novel phosphors were prepared using a solution combustion synthesis route. Structural properties were studied using powder X-ray diffraction and high-resolution transverse electron microscopy. The optical properties were studied using ultraviolet-visible light spectroscopy and Fourier transform infrared spectroscopy; luminescence properties were studied using a photoluminescence (PL) technique. The crystal structure of the prepared Zn 4 Al 22 O 37 host and Ce 3+ -and Eu 3+ -activated Zn 4 Al 22 O 37 phosphors was investigated and was found to have a hexagonal structure. The measured PL emission spectrum of the Ce 3+ -doped Zn 4 Al 22 O 37 phosphor showed an intense and broad emission band centred at 421 nm under a 298 nm excitation wavelength. By contrast, the Eu 3+ -doped Zn 4 Al 22 O 37 phosphor exhibited two strong and intense emission bands at approximately 594 nm (orange) and 614 nm (red), which were monitored under 395 nm excitation. The Commission Internationale de l'Eclairage

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Synthesis, crystal structure and luminescence in Ca3Al2O6

Cited by 11 publications

References 21 publications

Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

Hydrothermal synthesis, characterization and enhanced photocatalytic activity and toxicity studies of a rhombohedral Fe₂O₃nanomaterial

Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system

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Synthesis, crystal structure and luminescence in Ca3Al2O6

Cited by 11 publications

References 21 publications

Unveiling Non-isothermal Crystallization of CaO–Al2O3–B2O3–Na2O–Li2O–SiO2 Glass via In Situ X-ray Scattering and Raman Spectroscopy

Unveiling Non-isothermal Crystallization of CaO–Al2O3–B2O3–Na2O–Li2O–SiO2 Glass via In Situ X-ray Scattering and Raman Spectroscopy

Hydrothermal synthesis, characterization and enhanced photocatalytic activity and toxicity studies of a rhombohedral Fe2O3nanomaterial

Study on luminescence properties of Ce3+ and Eu3+ ions in a nanocrystalline hexagonal Zn4Al22O37 novel system

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Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

Unveiling Non-isothermal Crystallization of CaO–Al₂O₃–B₂O₃–Na₂O–Li₂O–SiO₂ Glass via In Situ X-ray Scattering and Raman Spectroscopy

Hydrothermal synthesis, characterization and enhanced photocatalytic activity and toxicity studies of a rhombohedral Fe₂O₃nanomaterial

Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system