Effect of ITO Nanoparticles on Dielectric Relaxation Processes and an Analysis of The Electric Impedance Characteristics of ITO/Epoxy Nanocomposites for Embedded Capacitor Devices

The dielectric relaxation processes of acetone, cyclohexanone, 4-methyl-2-pentanone, and 4-heptanone in dilute nonpolar solvents, n-heptane, cyclohexane, benzene, and carbon tetrachloride have been studied in the microwave region over a temperature range 10 to 60 °C. The relaxation times and the thermodynamic parameters for the activated states have been determined using the measured dielectric data. The results have been discussed in terms of dipole reorientation by molecular and intramolecular rotation and compared, wherever possible, with other similar studies on aliphatic molecules.

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EFFECT OF CELL THICKNESS ON THE DIELECTRIC RELAXATION PROCESSES IN FERROELECTRIC LIQUID CRYSTALS

International Journal of Modern Physics B ◽

10.1142/s0217979208039459 ◽

2008 ◽

Vol 22 (14) ◽

pp. 2263-2273 ◽

Cited By ~ 4

Author(s):

RAJBIR SINGH ◽

K. K. RAINA

Keyword(s):

Liquid Crystal ◽

Dielectric Relaxation ◽

Dielectric Strength ◽

Relaxation Processes ◽

Goldstone Mode ◽

Ferroelectric Liquid Crystal ◽

Dielectric Relaxation Spectroscopy ◽

Dielectric Parameters ◽

Liquid Crystal Material ◽

Cell Thickness

Dielectric relaxation spectroscopy in the frequency range 50 Hz to 1 MHz has been carried out in a room temperature ferroelectric liquid crystal mixture in the SmC*, SmA and N* phases in cells of different thickness. The relaxation frequency fr, distribution parameter α and dielectric strength δ∊ have been evaluated. Goldstone mode, domain mode and soft mode have been observed. It is found that the cell thickness has a significant effect on the dielectric parameters of the ferroelectric liquid crystal material. The results have been discussed.

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Dynamics of in situ synthetized silver-epoxy nanocomposites as studied by dielectric relaxation spectroscopy

Journal of Applied Polymer Science ◽

10.1002/app.33440 ◽

2010 ◽

Vol 120 (4) ◽

pp. 2361-2367 ◽

Cited By ~ 15

Author(s):

G. Kortaberria ◽

P. Arruti ◽

I. Mondragon ◽

L. Vescovo ◽

M. Sangermano

Keyword(s):

Dielectric Relaxation ◽

Dielectric Relaxation Spectroscopy ◽

Epoxy Nanocomposites ◽

Silver Epoxy

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On the temperature and pressure dependence of dielectric relaxation processes in ionic liquids

Physical Chemistry Chemical Physics ◽

10.1039/d1cp01636a ◽

2021 ◽

Author(s):

Florian Pabst ◽

Zaneta Wojnarowska ◽

Marian Paluch ◽

Thomas Blochowicz

Keyword(s):

Ionic Liquids ◽

Dielectric Relaxation ◽

Pressure Dependence ◽

Dynamic Processes ◽

Relaxation Processes ◽

Dielectric Spectra ◽

Temperature And Pressure ◽

Microscopic Origin

The temperature and pressure dependence of two dynamic processes in the dielectric spectra of five supercooled ionic liquids equipped with octyl-chains are reported. The microscopic origin of these processes is discussed.

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