Optical properties analysis of the new (C9H14N)3BiCl6 compound by UV–visible measurements

Kahouli, Kaouther; Kharrat, A. Ben Jazia; Chaabouni, Slaheddine

doi:10.1007/s12648-020-01942-w

Cited by 12 publications

(3 citation statements)

References 42 publications

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“…Organic-inorganic halide perovskites have found widespread technological application in recent years, particularly as solar cells, photodetectors, LED, memory devices, etc, to name a few [1][2][3][4][5][6]. Halide perovskites show high light emission coefficient, suitable photovoltaic property, and various other fascinating properties [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite

Sahoo

Paul

Maiti³

et al. 2022

Nanotechnology

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Two dimensional (2D) CsPb2Br5 have been successfully synthesized via the chemical precipitation method. Detailed structural, morphological, optical, and dielectric studies of these materials have been performed. These 2D CsPb2Br5 plates (of thickness around 200-300 nm) are ascribed to a tetragonal lattice system with I4/mcm space group. The dielectric attributes such as dielectric constant, electrical modulus, loss factor, and the DC, and AC conductivities, are observed to be varying appreciably with temperature over an extensive frequency window of 10 Hz -50 MHz. The Nyquist plots are investigated using the Maxwell–Wagner equivalent circuit model, which shows the impact of grains and grain boundaries on the overall impedance. Both the free charge conductivity and space charge increase with an increment in temperature, as revealed from the modified Cole-Cole plot. The relaxation time and relaxation mechanism of 2D CsPb2Br5 are estimated using the Kohlrausch-Williams-Watts (KWW) equation. Variation in DC conductivity and relaxation time, as a function of temperature, closely resembles Arrhenius' behavior. Value of activation energy calculated from the DC conductivity corroborates with the same derived from relaxation time. The observation of high dielectric constant and nominal dielectric loss for CsPb2Br5 perovskite offers enormous potential in energy harvesting and storage devices.

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Section: Introductionmentioning

confidence: 99%

Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite

Sahoo

Paul

Maiti³

et al. 2022

Nanotechnology

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show abstract

“…Визначення глибини проникнення Глибина проникнення, яку також називають глибиною скін шару (δ), визначали за формулою [23]:…”

Section: визначення оптичної енергії ширини забороненої зони панunclassified

“…1), яка і визначає ступінь середньої невпорядкованості плівок [30], можуть засвідчувати СЕМ-зображення поверхні плівок. Цей параметр інтерпретують як ширину "хвоста" Урбаха, що описує локалізовані стани, розташовані між валентною зоною та зоною провідності [23]. Обернена величина нахилу лінійної ділянки залежності lnα-hν (див.…”

Section: результати досліджень та їх обговоренняunclassified

Investigation of optoelectronic parameters of thin films of polyaniline on acetate cellulose substrate

Stetsiv,

Yatsyshyn,

Korniy

et al. 2023

Visnyk Lviv Univ. Ser. Chem.

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The polyaniline (PAn) films were deposited by chemical oxidation of 0.05 М aniline with 0.08 М APS in 0.5 M citric acid solution in the presence of acetate cellulose (AC) films. Formed PAn films have nanoscale thickness. The optoelectronic parameters such as band gap (E g ), Urbach energy (E u ), steepness parameter (σ), number of carbon extinction coefficient (k) and skin depth (δ) of AC/PAn films were determined using the UV-vis optical absorbance. The number of carbon atoms per bond length (M) and the number of carbon atoms per cluster (N) were calculated using E g . Energy band gap was evaluated from Tauc's plots. Optical characterization of PAn films confirms that the deposited material exhibits direct band gap. The obtained results show that the film thickness of PAn have direct infuences on the optical band gap of PAn films. The optical band gap value of PAn films was observed to vary from 2.94 to 2.18 eV as a function of PAn film thickness. The width of the tail of localized states in the band gap of PAn films was determined with the Urbach's method. The number of carbon atoms per conjugated length (N), the number of carbon atoms per cluster (M), and refractive index (n) for the present samples were determined. The Urbach energy values of the PAn coatings ranged from 0.6 to 1.95 eV. The obtained values of the optical band gap of the synthesized samples indicate that these materials have potential applications in semiconductor devices.

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Investigation studies of structural, electrical, dielectric, and optical of DyTi0.5 Mn0.5O3 multiferroic for optoelectronics applications

Raddaoui

Rejaiba

Nasri

et al. 2022

J Mater Sci: Mater Electron

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Optical properties analysis of the new (C9H14N)3BiCl6 compound by UV–visible measurements

Cited by 12 publications

References 42 publications

Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite

Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite

Investigation of optoelectronic parameters of thin films of polyaniline on acetate cellulose substrate

Investigation studies of structural, electrical, dielectric, and optical of DyTi0.5 Mn0.5O3 multiferroic for optoelectronics applications

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Optical properties analysis of the new (C9H14N)3BiCl6 compound by UV–visible measurements

Cited by 12 publications

References 42 publications

Temperature-dependent dielectric properties of CsPb2Br5: a 2D inorganic halide perovskite

Temperature-dependent dielectric properties of CsPb2Br5: a 2D inorganic halide perovskite

Investigation of optoelectronic parameters of thin films of polyaniline on acetate cellulose substrate

Investigation studies of structural, electrical, dielectric, and optical of DyTi0.5 Mn0.5O3 multiferroic for optoelectronics applications

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Product

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Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite

Temperature-dependent dielectric properties of CsPb₂Br₅: a 2D inorganic halide perovskite