Occupancies of Y in garnet-type Ca&lt;sub&gt;0.8&lt;/sub&gt;Y&lt;sub&gt;3.4&lt;/sub&gt;Zr&lt;sub&gt;0.8&lt;/sub&gt;Ga&lt;sub&gt;3.0&lt;/sub&gt;O&lt;sub&gt;12&lt;/sub&gt; crystal

Simura, Rayko; Sawamura, Kyosuke; Yamane, Hisanori; Sakakura, Terutoshi

doi:10.2109/jcersj2.22003

J. Ceram. Soc. Japan

2022

DOI: 10.2109/jcersj2.22003

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Occupancies of Y in garnet-type Ca0.8Y3.4Zr0.8Ga3.0O12 crystal

Rayko Simura

Kyosuke Sawamura

Hisanori Yamane

et al.

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2024

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On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates

Chen

2024

Zeitschrift anorg allge chemie

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Single crystal of a thallium‐containing sulfate Tl2Pb(SO4)2 was prepared through hydrothermal crystallization starting from Tl2CO3, Pb(NO3)2 and H2SO4. The crystal structure was solved from single‐crystal X‐ray diffraction data: Tl2Pb(SO4)2 crystallizes in space group R[[EQUATION]]m with lattice parameters of a = 5.5955(2) Å, c = 22.1001(9) Å, and Z = 3, which is also corroborated by Rietveld refinement on X‐ray powder data. The crystal structure can be regarded as [Pb(SO4)2]2‐ sheets intercalated by double layers of Tl+ along the c‐axis. From a mineralogical perspective, Tl2Pb(SO4)2 belongs to the palmierite family and can further be classified within palmierite‐supergroup. Validation of the structure models was carried out utilizing various concepts including Bond Valence (BV), Charge Distribution (CD) and Madelung Part of Lattice Energy (MAPLE). Notably, a contrast in stereochemical activity of 6s2 lone electron pair (LEP) between Tl+ and Pb2+ is interpreted in terms of bonding behaviours as well as Wang‐Liebau Eccentricity (WLE) parameters. Moreover, an extensive investigation into the crystal chemistry of thallium‐containing sulfates was conducted for the first time, focusing on the coordination environment and bonding behaviour of Tl+ and corresponding WLE parameters. A comparative analysis of these structurally related compounds including Tl2Pb(SO4)2, Tl3H(SO4)2, TlBi(SO4)2, TlIn(SO4)2, TlRh(SO4)2, and TlAl(SO4)2 was delineated.

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On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates

Chen

2024

Zeitschrift anorg allge chemie

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Exploring inorganic phosphors: basics, types, fabrications and their luminescence properties for LED/WLED/displays

Rahman,

Khan,

Jain

et al. 2024

Reviews in Inorganic Chemistry

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The utilization of phosphors in lighting and display applications has garnered significant attention due to their unique luminescent properties and versatile crystal structures. This review article comprehensively examines recent advances in the synthesis, characterization, and applications of nitride and sulfide phosphors. This article addresses various phosphor crystal structures, including perovskite, garnet, nitride sulfide, fabrications strategies, and their impact on the optical and electronic properties. Furthermore, the review highlights the role of doping and activator ions in tailoring the emission characteristics of nitride and sulfide phosphors, enabling precise control over color rendering and efficiency. Additionally, the article also discusses emerging trends in phosphor technology, such as the development of novel synthesis methods and the integration of phosphors into next-generation lighting and display devices. The basic properties of phosphor materials like CRI, CIE chromaticity coordinates, quantum efficiencies are well discussed. Overall, this article provides valuable insights into the current state of research and future directions in the field of phosphors offering potential avenues for further advancements in lighting and display technologies.

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Occupancies of Y in garnet-type Ca<sub>0.8</sub>Y<sub>3.4</sub>Zr<sub>0.8</sub>Ga<sub>3.0</sub>O<sub>12</sub> crystal

Cited by 2 publications

References 18 publications

On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates

On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates

Exploring inorganic phosphors: basics, types, fabrications and their luminescence properties for LED/WLED/displays

Contact Info

Product

Resources

About

Occupancies of Y in garnet-type Ca<sub>0.8</sub>Y<sub>3.4</sub>Zr<sub>0.8</sub>Ga<sub>3.0</sub>O<sub>12</sub> crystal

Cited by 2 publications

References 18 publications

On the Structure of Tl2Pb(SO4)2 and Crystal Chemistry of Thallium‐Containing Sulfates

On the Structure of Tl2Pb(SO4)2 and Crystal Chemistry of Thallium‐Containing Sulfates

Exploring inorganic phosphors: basics, types, fabrications and their luminescence properties for LED/WLED/displays

Contact Info

Product

Resources

About

On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates

On the Structure of Tl₂Pb(SO₄)₂ and Crystal Chemistry of Thallium‐Containing Sulfates