Crystal Structure and Optical Characterization of a New Hybrid Compound, C6h9n2fecl4, with Large Dielectric Constants for Field-Effect Transistors

Ghoudi, Arafet; brahim, khawla ben; Ghalla, H.; Lhoste, J.; Auguste, Sandy; Khirouni, K.; Aydi, Abdelhedi; Oueslati, A.

doi:10.2139/ssrn.4332443

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“…On the other hand, the tetracoordinate index (τ 4 ) for the four‐coordinate compounds can be beneficial in determining the extent of distortion [62] . A tetracoordinate index is a numerical value that spans from 0, indicating perfect square planar geometry, to 1, signifying perfect tetrahedral geometry.…”

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confidence: 99%

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals

Dinesh,

Singh

2024

ChemistrySelect

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Organic‐inorganic metal halide single crystals have attracted a lot of attention due to their flexible structural design and excellent optoelectronic applications. This study details the synthesis of copper‐based [(CH3)4N]2CuBr4 hybrid metal halide single crystals via a slow evaporation method. The crystal structure, crystal habit, chemical groups, intermolecular interactions, electrical properties of the sample were studied via single crystal x‐ray diffraction, scanning electron microscopy, Raman and Fourier transform infrared spectrometer, Hirshfeld surface analysis, impedance spectroscopy, and modulus spectroscopy, respectively. An orthorhombic crystal system with the non‐centrosymmetric space group Pna21 was identified at room temperature. The deformation in the tetrahedra was calculated by the bond angle and bond length deformation index. The Cole‐Cole plot displayed the existence of depressed semicircles, which indicated the predominant distribution of grains, further confirmed by the SEM image. The deformed semi‐circular arcs on the electric modulus curve undeniably prove that the bulk effect dominates the material‘s electrical properties. Significantly, the compound presents a phase transition at ~240 K and excellent thermal stability up to a temperature of 400 K. Therefore, our research sheds light on the temperature dependence of electrical responses in these hybrid crystals and gives inspiration for the development of single crystal‐based efficient energy devices.

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Section: Resultsmentioning

confidence: 99%

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals

Dinesh,

Singh

2024

ChemistrySelect

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Crystal Structure and Optical Characterization of a New Hybrid Compound, C6h9n2fecl4, with Large Dielectric Constants for Field-Effect Transistors

Cited by 1 publication

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Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals

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Crystal Structure and Optical Characterization of a New Hybrid Compound, C6h9n2fecl4, with Large Dielectric Constants for Field-Effect Transistors

Cited by 1 publication

References 0 publications

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH3)4N]2CuBr4 Single Crystals

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH3)4N]2CuBr4 Single Crystals

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Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals

Structural Elucidation of Electrical and Optical Properties in Lead‐free Organic‐Inorganic Copper Bromide [(CH₃)₄N]₂CuBr₄ Single Crystals