Issue 17, 2024

Memory effect in ferroelectric polyvinylidene fluoride (PVDF) films via spin crossover probes

Abstract

Ferroelectric polymers are of great interest due to their intrinsic processing capabilities, superior to classic inorganic ferroelectric materials. For example, polyvinylidene fluoride (PVDF) and derivatives have been incorporated into multiple device architectures for information storage and transfer. Here we report an additional advantage of organic ferroelectrics as their flexibility allows for the preparation of composites with spin crossover (SCO) probes to tune their ferroelectric parameters by external stimuli. We demonstrate how the saturation polarization and coercive field of a ferroelectric [Fe(NH2trz)3](NO3)2/PVDF composite film depends on the spin state of the [Fe(NH2trz)3](NO3)2, opening a thermal hysteresis and delivering a ferroelectric material with a memory effect. This switching may now be used to tune the function of a device, adding additional information states to the elemental binary logic. Additional evidence of the synergy between the two components of these films was also found in the glass transition of the PVDF component that induces small changes in the paramagnetic component.

Graphical abstract: Memory effect in ferroelectric polyvinylidene fluoride (PVDF) films via spin crossover probes

Supplementary files

Article information

Article type
Paper
Submitted
24 ene. 2024
Accepted
28 mar. 2024
First published
02 abr. 2024

Dalton Trans., 2024,53, 7590-7595

Memory effect in ferroelectric polyvinylidene fluoride (PVDF) films via spin crossover probes

Y. S. Koo and J. R. Galan-Mascaros, Dalton Trans., 2024, 53, 7590 DOI: 10.1039/D4DT00220B

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