Ferroelectricity in organic materials: from materials characteristics tode novodesign

Abstract

The development of new organic ferroelectrics has encountered some challenges and opportunities. In this perspective, we have summarised synthetic and computational design principles for high-performance organic ferroelectrics.

Cross-linking strategies for efficient and highly stable perovskite solar cells

“…We can extract design clues from the development of other stable organic semiconductors utilized in organic light-emitting diodes, 207 organic solar cells, 208 organic lasers, 209 and organic ferroelectric devices. 210 With a robust molecular skeleton in hand, the exploration of stable crosslinking materials is promising and foreseeable.…”

Control of electronic polarization via charge ordering and electron transfer: electronic ferroelectrics and electronic pyroelectrics

“…Therefore, the development of polarization switching materials such as ferroelectrics, pyroelectrics, and piezoelectrics and their characterization are important subjects in materials science. 14,[16][17][18][19] Polarization changes in polar compounds are widely employed for diverse applications, including IR light detectors, pyroelectric sensors, and thermal energy-conversion devices. In particular, polarization switching induced by an electric eld is the primary mechanism of ferroelectric memory devices.…”

Role of Momentum Matching in Increasing the Curie Temperature for Ferroelectricity in Host–Guest Complexes

“…Hence, organic molecular cocrystals/salts are being actively pursued for harnessing ferroelectricity. 9 A paraelectric to ferroelectric phase-transition in organic molecules is triggered by the symmetry breaking due to the formation of a noncentrosymmetric (polar) order as temperature is reduced. 10,11 This has been demonstrated in several donor−acceptor supramolecular aggregates where the local dipoles get oriented.…”

“…Additionally, they are lightweight and mechanically flexible. Hence, organic molecular cocrystals/salts are being actively pursued for harnessing ferroelectricity …”