Enhanced ferroelectric switching characteristics of P(VDF-TrFE) for organic memory devices
Kusuma, Damar Yoga
Nguyen, Chien A.
Lee, Pooi See
Date of Issue2010
School of Materials Science and Engineering
In the following work, we report an approach to shorten the ferroelectric switching time of P(VDF-TrFE) film by blending with as-synthesized gold nanoparticles. Ferroelectric hysteresis measurements give remnant polarization and coercive field of 8 μC/cm2 and 50 MV/m, respectively. A series of electric pulses was applied for the characterization of ferroelectric polymers, and the switching time response was evaluated. More than 3 orders of magnitude reduction in switching time is observed for the polymer film blended with nanoparticles of the amount 1 × 10−6 wt %. The observed switching enhancements are discussed in terms of improved alignment of the ferroelectric crystal plane in the presence of the gold nanoparticles, whereby the aligned crystal planes experience a stronger effective field compared to the randomly oriented planes in pristine P(VDF-TrFE).
The journal of physical chemistry B
© 2010 American Chemical Society