Electrical conductivity and dielectric relaxation in non-crystalline films of tungsten trioxide

On the nature of bulk electrical relaxation in 4‑tricyanovinyl-N,N-diethylaniline (TCVA)

“…For a frequency above the peak maximum, the carriers seem to be confined to potential well. Thus, the charges become to be mobile over a short distance [42,44]. The temperature dependence of the peak position of Z 00 (v) is shown in Fig 9. This dependence gives a linear relationship with the reciprocal temperature.…”

“…Also, this is the reason for using constant-phase elements (CPEs) rather than ordinary capacitors in equivalent circuits. This behavior can be represented by an equivalent circuit element composed of R 1 Q 1 C 1 (where R 1 Q 1 C 1 represents the parallel combination of resistance, R 1 , capacitance, C 1 and constant phase element, Q 1 , for describing the bulk properties of the sample [44]. Fig.…”

AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

“…Both e¢ and e¢¢ rise sharply at low frequencies indicating that electrode polarization and space charge effects have occurred confirming non-Debye dependence. [41][42][43] However, at high frequencies, there is no excess of ion diffusion in the direction of the applied field. So, the polarization due to space charge accumulation decreases.…”

Dielectric properties of bis(2,4 pentanedionato)copper(II) crystalline films grown on Si substrate for low-k applications

“…The relaxation process is masked by the conduction current. Therefore, to study the dielectric relaxation peak in transition-element compounds, glasses, and complexes it was found that it is easier to deal with the dielectric modulus MðxÞ rather than dielectric loss e 00 ðxÞ since in the later function the actual dielectric loss (relaxation) current could be masked by the dominant conduction current [22,23]. Furthermore, the dielectric modulus MðxÞ representation suppresses the unwanted effects of extrinsic relaxation, eliminate the contribution of electrode polarization contribution, and strong effect of dc-conductivity [24,25].…”