Dielectric dispersion in viscous polar liquids

1956 ◽  
Author(s):  
J. W. Winslow ◽  
R. J. Good ◽  
P. E. Berghausen
Keyword(s):  
Dielectric Dispersion ◽  
Polar Liquids

Dielectric Dispersion in Viscous Polar Liquids

1957 ◽  
Vol 27 (1) ◽  
pp. 309-312 ◽  
Author(s):  
J. W. Winslow ◽  
R. J. Good ◽  
P. E. Berghausen
Keyword(s):  
Dielectric Dispersion ◽  
Polar Liquids

Dielectric dispersion in pure polar liquids at very high radio-frequencies II. Relation of experimental results to theory

1952 ◽  
Vol 213 (1115) ◽  
pp. 473-492 ◽  
Keyword(s):  
Relaxation Time ◽  
Viscous Flow ◽  
Frequency Factor ◽  
Dielectric Dispersion ◽  
Resonance Absorption ◽  
Millimetre Wave ◽  
Polar Liquids ◽  
Single Relaxation Time ◽  
Observed Behaviour ◽  
Very High

The results of the measurements at centimetre and millimetre wave-lengths on the dielectric properties of water, methyl alcohol and ethyl alcohol described in part I are analyzed. There is no evidence that, for any of these liquids, more than a single relaxation time as a function of temperature is required to account for the dispersion arising from dipole rotation. It is suggested that the observed behaviour of the two alcohols at wave-lengths near to 1 cm, which appears not to conform with the hypothesis of a single relaxation time, is in fact the consequence of resonance absorption. If it is supposed that in dipole rotation and viscous flow the molecules have to surmount potential energy barriers, then it appears that, in each of the liquids examined, the heights of the barriers concerned in the two processes are identical; but the ‘frequency factor’ associated with such processes is much larger for viscous flow than for dipole rotation.

Dielectric dispersion in pure polar liquids at very high radio frequencies - III.The effect of electrolytes in solution

1952 ◽  
Vol 214 (1119) ◽  
pp. 531-545 ◽  
Keyword(s):  
Sodium Chloride ◽  
Ionic Conductivity ◽  
Aqueous Solutions ◽  
Methyl Alcohol ◽  
Dielectric Dispersion ◽  
Basic Theory ◽  
Polar Liquids ◽  
Polar Dielectric ◽  
Radio Frequencies ◽  
Very High

A description is given of measurements at millimetre and centimetre wave-lengths of absorption in electrolytic solutions, up to concentrations of about 3 normal, with water and methyl alcohol as solvents. The observations are analyzed in terms of Debye’s basic theory of dispersion in a polar dielectric, and it is shown what modifications to the theory are necessary to take account of the ionic conductivity produced by an electrolyte. Measure­ments on aqueous solutions of sodium chloride are discussed in relation to Hückel’s theory of electrolytic solutions.

Dielectric dispersion in pure polar liquids at very high radio-frequencies I. Measurements on water, methyl and ethyl alcohols

1952 ◽  
Vol 213 (1114) ◽  
pp. 400-408 ◽  
Keyword(s):  
Refractive Index ◽  
Absorption Coefficient ◽  
Radio Frequency ◽  
Freezing Point ◽  
Dielectric Dispersion ◽  
Wave Guide ◽  
Electrical Characteristics ◽  
Polar Liquids ◽  
Radio Frequency Energy ◽  
Very High

The results are given of some measurements of the absorption coefficient and refractive index of water, methyl and ethyl alcohols at wave-lengths of 6·2 mm, 1·24 cm and 3·21 cm over the temperature range —10 to 50°C, including some observations on water in the supercooled state. The method used is based upon the fact that the rate of attenuation of radio-frequency energy along a wave-guide filled with the liquid is dependent upon both the absorption coefficient and the refractive index when the guide is operated near to the cut-off condition. The electrical characteristics of water vary in a continuous manner through the normal freezing-point of 0°C down to at least —8°C. The measurements indicate that both alcohols, like water, have relatively high atomic polarizations.

scholarly journals Correction: Space charge limited release of charged inverse micelles in non-polar liquids

2021 ◽  
Author(s):  
Manoj Prasad ◽  
Filip Strubbe ◽  
Filip Beunis ◽  
Kristiaan Neyts
Keyword(s):  
Space Charge ◽  
Chem Phys ◽  
Polar Liquids ◽  
Inverse Micelles ◽  
Phys Chem Chem Phys ◽  
Space Charge Limited

Correction for ‘Space charge limited release of charged inverse micelles in non-polar liquids’ by Manoj Prasad et al., Phys. Chem. Chem. Phys., 2016, 18, 19289–19298, DOI: 10.1039/C6CP03544B.

Band offsets, dielectric dispersion and some applications of CdSe/GeO2 heterojunctions

Optik ◽  
2021 ◽  
Vol 231 ◽  
pp. 166506
Author(s):  
Najla M. Khusayfan ◽  
A.F. Qasrawi ◽  
Seham R. Alharbi ◽  
Hazem K. Khanfar ◽  
T.S. Kayed
Keyword(s):  
Dielectric Dispersion ◽  
Band Offsets
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