Thermally stimulated luminescence and conductivity

Bräunlich, P.; Kelly, Paul J.; Fillard, J.P.

doi:10.1007/3540095950_8

Cited by 39 publications

(36 citation statements)

References 185 publications

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“…The peaks identified in the TSDC spectrum were attributed to specific dipolar relaxation processes. The activation energy was calculated either by using the initial rise method or by monitoring the variation of peak maxima temperature with a variation in temperature ramp rate while recording the depolarization current and using the following equation: T normalm = [ E K q normalτ 0 .25em exp ( E k T normalm ) ] 1 / 2 where k , q , T m , E, and τ 0 are the Boltzmann constant, temperature ramp rate, relaxation peak maxima temperature, activation energy for relaxation, and relaxation time constant at infinite temperature, respectively. A comparison between the TSDC spectrum of laminar composites with and without interfacial coupling agent was obtained.…”

Section: Methodsmentioning

confidence: 99%

Effects of Interfacial Modifications on Electrical Properties of Laminar Composite Dielectrics

Tewari¹,

Rajagopalan²,

Furman³

et al. 2010

Langmuir

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The reported work highlights that both polarizibility and quasi-DC conductivity, the two most important parameters for high energy density materials, can be influenced by the surface polarity of an oxide and interfacial surface tension between the oxide and polymer in a laminar composite. Surface modification of laminar composites, composed of thermally grown silica and vapor phase grown Parylene C thin films using organosilanes, was used to control silica surface polarity and interfacial surface tension. Surface polarity of thermally grown silica was found to control the interfacial dipolar energy states.

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Section: Methodsmentioning

confidence: 99%

Effects of Interfacial Modifications on Electrical Properties of Laminar Composite Dielectrics

Tewari¹,

Rajagopalan²,

Furman³

et al. 2010

Langmuir

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“…[5][6][7][8] Unfortunately, it appears that they have Leen used extensively without regard to the assumptions invoked in their derivation. As will be explained, these equations require an additional assumption that is, as far as can be determined, seldom mentioned explicitly.…”

Section: The Second Order Tl Expressionmentioning

confidence: 99%

Thermoluminescence systems with two or more glow peaks described by anomalous kinetic parameters

Levy

1984

Nuclear Instruments and Methods in Physics Research Section B:

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The thermoluiainescence (TL) glow peaks obtained from materials exhibiting two or more glow peaks, e.g. NaCl, quartz and other minerals, often appear to be well described by the well-known first and second order TL kinetics. However, in many cases physically unrealistic E (activation energy) and s (pre-exponential factor) parameters are obtained. In addition, the kinetic parameters often depend on the premeasurement radiation dose that controls the initial trapped charge con-

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“…Ionic or electronic current is produced by the combination of two processes: the injection of charge coming from the TSDC cell electrodes or the thermally stimulated movement of charge carriers inherent to the sample. The theory used to explain thermoluminescence due to charge relaxation processes has also been successfully used to explain the currents in TSDC measurements from the same origin [14][15][16][17][18]. The band structure formed by solids, even those of amorphous microstructure, originates energy sub-levels known as traps.…”

Section: Introductionmentioning

confidence: 99%

Quantitative and qualitative analysis of segmental dielectric relaxations and space charge by TSDC in nanocomposites of natural rubber/clay

Martínez

Perera

Tarife³

2020

Rev. Mex. Fís.

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The effect of adding three different layered clays, a sodium montmorillonite and two commercial modified montmorillonites, on the morphology and molecular dynamics of natural rubber characterized by Transmission Electron Microscopy and Thermally Stimulated Depolarization Currents (TSDC) was studied. Carbon black was employed as reinforcing filler in a standard compound prepared and used for comparison purposes. The morphological results revealed that the sample with Cloisite\circledR 15A displays the highest degree of exfoliation, which suggests a stronger compatibility between the organic and inorganic phases. When the dispersion degree increases, a decrease of the activation energy was found from the quantitative analysis of the space charge dielectric relaxations. From the qualitative analysis of the dipolar dielectric relaxations around $T_{g}$, changes in the dielectric relaxation profile and in the peak localization were attributed to probable interactions between the nanofillers and the elastomer in the glass transition region of the NR.

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Thermally stimulated luminescence and conductivity

Cited by 39 publications

References 185 publications

Effects of Interfacial Modifications on Electrical Properties of Laminar Composite Dielectrics

Effects of Interfacial Modifications on Electrical Properties of Laminar Composite Dielectrics

Thermoluminescence systems with two or more glow peaks described by anomalous kinetic parameters

Quantitative and qualitative analysis of segmental dielectric relaxations and space charge by TSDC in nanocomposites of natural rubber/clay

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