Dielectric properties of films of silicon monoxide

Hill, Arthur E.; Phahle, A.M.; Calderwood, J.H.

doi:10.1109/ceidp.1969.7739887

Cited by 4 publications

(3 citation statements)

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“…shows the variation of the dielectric permittivity ε and dielectric loss ε versus frequency at room temperature, 300 K. Both ε and ε decrease monotonically with increasing frequency in the frequency range of ωτ 1. This behavior can be described by the Debye dispersion relations [63]…”

Section: Dielectric Properties Figures 7(a) and (B)mentioning

confidence: 99%

Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

2013

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Polymer blends of poly (vinyl alcohol) (PVA) and PEDOT:PSS (poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate)), were prepared by casting from aqueous solution. They were characterized by x-ray diffraction, scanning electron microscopy, differential scanning calorimetery, thermo gravimetric analysis, Fourier transform infrared, ac spectroscopy and optical UV–visible absorption techniques. The thermal analysis did not illustrate significant variations of PVA when blended with different concentrations of PEDOT:PSS. The bulk conductivity of PVA/PEDOT:PSS blend illustrated a two orders increase, while the activation energy reduced from 0.52 to 0.16 eV with an increasing PEDOT:PSS concentration to 4 wt%. In addition, the frequency dependence of conductivity obeyed the power relation σ ∼ ωs, 0.3 < s < 0.45, which predicts ionic diffusion. The dielectric constant and dielectric loss ε″ obeyed, at ambient temperature, the Debye dispersion relations in a wide range of frequencies. A new significant optical broad absorption peak appeared in the visible range around 926 nm. Its height increased by increasing the PEDOT:PSS concentration, which was attributed to a direct energy band gap, in the range 1.05–1.2 eV, and plasmon–exciton interaction.

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Section: Dielectric Properties Figures 7(a) and (B)mentioning

confidence: 99%

Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

2013

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“…While solvent mixtures are natively possible in the SSIP model, for Lifshitz theory, the bulk dielectric constant and refractive index are required. The dielectric constant of a nonpolar mixture can be calculated using the Clausius–Mosotti equation ε m ′ − 1 ε m ′ + 2 = ∑ i 4 π ν i ρ i N A α i 3 M i where ε m ′ is the dielectric constant of the mixture, N A is Avogadro’s number, and for each component i of the mixture n i is the volume fraction, r i is the mass density, α i is the electric polarizability, and M i is the molecular weight. The values of these parameters can be obtained from the literature.…”

Section: Methodsmentioning

confidence: 99%

Transcending Lifshitz Theory: Reliable Prediction of Adhesion Forces between Hydrocarbon Surfaces in Condensed Phases Using Molecular Contact Thermodynamics

Siles Brügge,

Hunter,

Leggett

2024

Langmuir

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“…In those materials that possess dielectric dispersion, a variation from ideal Debye behavior is observed, as there is the possibility of the existence of multiple relaxation times. [25][26][27] K S Cole and R H Cole suggested that in such cases, permittivity follows the empirical equation…”

Section: Cole-cole Representation Of Dielectric Datamentioning

confidence: 99%

Structural evolution-enabled BiFeO₃ modulated by strontium doping with enhanced dielectric, optical and superparamagnetic properties by a modified sol-gel method

S¹,

E²,

A³

2023

Chinese Phys. B

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Multiferroic (BFO) nanoparticles doped with strontium with general formula, Bi1‐xSrxFeO3 (x=0.0,0.3,0.5, 0.7 ) have been synthesized by modified Sol‐gel auto‐combustion process. The structural, electrical, optical, and magnetic properties of the samples are discussed. The structural analysis carried out by X‐ray powder diffraction technique shows a structural transition from rhombohedral (R‐3c) to cubic(Pm‐3m) for the doping amount of strontium(Sr) equal to x=0.3. Morphological analyses of the prepared samples are carried out using scanning electron microscopy (SEM). Frequency‐dependent dielectric constant and ac conductivity have been studied. The doped samples, having improved dielectric properties, can be used to fabricate different optoelectronic devices. Strong dielectric dispersion and broad relaxation were exhibited by all samples. Cole‐Cole plots were employed as an effective tool to study the dispersion parameters namely optical dielectric constant, static dielectric constant, relaxation time, and spreading factor. The activation energy was calculated from relaxation peaks and Cole‐Cole plots and found to be compatible with each other. The bandgap of the samples was calculated using Diffuse reflectance spectral (DRS) analysis. The sharp and strong photoluminescence in the IR region is observed in the samples similar to ZnO, which is reported for the first time. The room temperature and low‐temperature magnetization studies point towards the superparamagnetic nature of the samples with an improvement of magnetic properties with doping. Antiferromagnetic behavior of bulk bismuth ferrite transforms to superparamagnetic nature for both pure and Sr‐substituted bismuth ferrite nanoparticles due to close dimension of crystallite size with magnetic domains leading to break‐down of the frustrated spin cycloidal moment.

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Dielectric properties of films of silicon monoxide

Cited by 4 publications

References 0 publications

Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

Transcending Lifshitz Theory: Reliable Prediction of Adhesion Forces between Hydrocarbon Surfaces in Condensed Phases Using Molecular Contact Thermodynamics

Structural evolution-enabled BiFeO₃ modulated by strontium doping with enhanced dielectric, optical and superparamagnetic properties by a modified sol-gel method

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Dielectric properties of films of silicon monoxide

Cited by 4 publications

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Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

Characterization of poly (vinyl alcohol)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) polymer blend: structure, optical absorption, electrical and dielectric properties

Transcending Lifshitz Theory: Reliable Prediction of Adhesion Forces between Hydrocarbon Surfaces in Condensed Phases Using Molecular Contact Thermodynamics

Structural evolution-enabled BiFeO3 modulated by strontium doping with enhanced dielectric, optical and superparamagnetic properties by a modified sol-gel method

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Structural evolution-enabled BiFeO₃ modulated by strontium doping with enhanced dielectric, optical and superparamagnetic properties by a modified sol-gel method