NEW APPROACH OF THE AC ELECTRODE POLARIZATION DURING THE MEASUREMENTS OF IMPEDANCE SPECTRA

被引:0
作者
Ganea, C. P. [1 ]
机构
[1] Natl Inst Mat Phys, RO-077125 Magurele, Romania
来源
ROMANIAN JOURNAL OF PHYSICS | 2012年 / 57卷 / 3-4期
关键词
SPACE-CHARGE; ELECTRICAL RESPONSE; BLOCKING ELECTRODES; SPECTROSCOPY; CELL; TRANSPORT;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A mathematical approach for describing the influence of the ions dissolved in a liquid crystal on the impedance measurements is presented. New independent variables allow re-formulating the basic coupled differential equations of continuity and Poisson equation as well. The obtained forms are simpler than those used up to now. Illustrative examples are analyzed.
引用
收藏
页码:664 / 675
页数:12
相关论文
共 34 条
[1]   Prismatic faces of KDP crystal, kinetic and mechanism of growth from solutions [J].
Alexandru, HV ;
Antohe, S .
JOURNAL OF CRYSTAL GROWTH, 2003, 258 (1-2) :149-157
[2]   Transient effects in electrolytic cells submitted to an external electric field [J].
Alexe-Ionescu, A. L. ;
Barbero, G. ;
Freire, F. C. M. ;
Scalerandi, M. .
LIQUID CRYSTALS, 2006, 33 (10) :1177-1187
[3]   Electric response of a cell of hydrogel: Role of the electrodes [J].
Alexe-Ionescu, A. L. ;
Atasiei, R. ;
Dascalu, C. ;
Freire, F. C. M. ;
Barbero, G. .
APPLIED PHYSICS LETTERS, 2011, 98 (06)
[4]   Models for ionic contribution to the complex dielectric constant of nematic liquid crystals [J].
Alexe-Ionescu, A. L. ;
Barbero, G. ;
Lelidis, I. .
PHYSICAL REVIEW E, 2009, 80 (06)
[5]   Complex Dielectric Constant of a Nematic Liquid Crystal Containing Two Types of Ions: Limit of Validity of the Superposition Principle [J].
Alexe-Ionescu, A. L. ;
Barbero, G. ;
Lelidis, I. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2009, 113 (44) :14747-14753
[6]   Impedance spectroscopy of an electrolytic cell limited by ohmic electrodes [J].
Barbero, G. ;
Batalioto, F. ;
Figueiredo Neto, A. M. .
JOURNAL OF APPLIED PHYSICS, 2007, 101 (05)
[7]   Evidence of the ambipolar diffusion in the impedance spectroscopy of an electrolytic cell [J].
Barbero, G. ;
Lelidis, I. .
PHYSICAL REVIEW E, 2007, 76 (05)
[8]   Significance of small voltage in impedance spectroscopy measurements on electrolytic cells [J].
Barbero, G ;
Alexe-Ionescu, AL ;
Lelidis, I .
JOURNAL OF APPLIED PHYSICS, 2005, 98 (11)
[9]   Role of the diffuse layer of the ionic charge on the impedance spectroscopy of a cell of liquid [J].
Barbero, G ;
Alexe-Ionescu, AL .
LIQUID CRYSTALS, 2005, 32 (07) :943-949
[10]   Influence of adsorption phenomenon on the impedance spectroscopy of a cell of liquid [J].
Barbero, G .
PHYSICAL REVIEW E, 2005, 71 (06)