International Scholarly Research Notices / 2013 / Article / Tab 1

Research Article

Study of Dielectric Relaxation Behavior of Liquid Crystal Copolyester Vectra-A by Thermally Stimulated Discharge Current Technique

Table 1

Values of activation energy (U), dipolar relaxation strength , preexponential factor , charge released (Q), and concentration of traps ( ) for β-relaxation at poling temperature = 80°C for various polarizing fields.

β-relaxation
Poling fields
(kV/cm)
U (eV)  (Sec)Q (C)  (m−3)

3.80.510.271.74 × 10−62.27 × 10−106.19 × 1011
7.70.490.27 3.54 × 10−64.65 × 10−1012.65 × 1011
11.50.420.326.83 × 10−58.30 × 10−1022.59 × 1011
15.30.380.342.04 × 10−411.56 × 10−1031.47 × 1011
19.20.320.343.39 × 10−314.85 × 10−1040.42 × 1011