Effekter på energilagring af antiferroelektrisk materiale

What is antiferroelectric material?

Antiferroelectric material is another category of dielectric materials which exhibits excellent energy storage characteristics. The dipoles in the antiferroelectric materials are oriented in an antiparallel direction, which is primarily responsible for macroscopic spontaneous polarization .

Can antiferroelectric polymers be used for energy storage?

Since the brittleness and high electric field induced strain of the antiferroelectric ceramics, there is concern about the reliability of the materials for energy storage application. It is advantageous to develop antiferroelectric polymers for this application. Figure 10.24.

How to increase energy storage property of antiferroelectric ceramics?

To increase the energy storage property of antiferroelectric ceramics, we need high AFE–FE phase transition electric field (enhanced antiferroelectric phase stability), high maximum polarization of the induced FE phase, and high breakdown strength.

Which phase is antiferroelectric?

Therefore, it is summarized that the M 1 phase is ferrielectric, the M 2 and M 3 phases are antiferroelectric, while the O, T, and C phases are paraelectric. FIG.

What is a broad antiferroelectric loop?

A broad antiferroelectric loop indicates a higher energy loss, which will subsequently be transformed into heat, which in turn can increase the temperature of the capacitor and significantly degrading the overall performance of the device.

Does antiferroelectric material have a double hysteresis loop?

Generally, antiferroelectric materials exhibit a double hysteresis loop (Fig. 3 (d)), and therefore, the discharge energy density area is square in shape, and subsequently, the discharge energy density is relatively higher compared to relaxor ferroelectrics.