Modeling of space charge dielectric constant

The space charge polarization/depolarization is considered, and to relate the geometrical arrangement of constitutive phases to the dielectric response, three space charge dielectric constants, viz., trapped space charge dielectric constant ε t , drift space charge dielectric constant ε d and dielectric constant ε are modeled. It is observed that the order of ε t is same for AgI and 0.9[0.75AgI:0.25AgCl]:0.1SiO 2 nanocomposite in β − and α −phases. In β − phase, ε d and ε are 10 times larger and 10 times smaller in the second system of respective β − and α −phases. In β − phase, the ionic concentration provides the main contribution to the dielectric response of both systems, and in α − phase, the ionic mobility has the main contribution to the dielectric nature.