Dielectric, impedance, modulus spectroscopy and AC conductivity studies on novel organic ferroelectric diisopropylammonium chloride (dipaCl)

Organic molecular ferroelectric diisopropylammonium chloride (dipaCl) was successfully synthesized using diisopropylamine, hydrochloric acid (57%) and methanol solution. Dielectric permittivity, impedance, modulus spectroscopy and conductivity were systematically studied by Capacitance-Conductance (C-P - G) measurements in the temperature range of 373-445 K. Dielectric property tests clearly show that the organic molecular ferroelectric dipaCl obeys Curies-Weiss law 1/epsilon = (T-T-0)/C. The real (Z') and imaginary (Z '') parts of the electrical modulus were calculated from the various values of epsilon' and epsilon '' It is shown that AC-conductivity satisfies the relation sigma(w) infinity w(n), where the power exponent n depends on temperature and frequency. From Arrhenius equation, the activation energies E-sigma and E-h are also calculated which describes the complete conduction mechanism of dipaCl.