Electrical conductivity of 4-tricyanovinyl-N,N-diethylaniline

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

“…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. The calculated value of activation energy was found to be, DE = 0.74 eV which is close to the reported activation energy of bulk TCVA that obtained from DC conductivity [21]. Fig.…”

“…These chaotic motions within the investigated sample will lead to decrease the polarization as well as the value of e 0 (v). From another point of view, the higher value of e 0 (v) at low frequency can be attributed to the existence of multiple or polycrystalline structure with a triclinic crystal system [21,45]. Consequently the free charges can be accumulated at the inter-phases between these crystal phases close to the electrode.…”

“…In our previous work, physical characterizations of TCVA have been reported [21]. The differential scanning calorimetry measurements of TCVA showed that this compound is stable up to 423 K [21].…”

“…The differential scanning calorimetry measurements of TCVA showed that this compound is stable up to 423 K [21]. Also, the temperature dependence of DC electrical conductivity was studied in pellet samples of TCVA.…”

“…Also, the temperature dependence of DC electrical conductivity was studied in pellet samples of TCVA. The temperature dependence of the DC electrical conductivity is typical for semiconductor compounds and was found to be 7.01 Â10 9 V À1 cm À1 at room temperature [21].…”