Plastic/Ferroelectric Crystals with Easily Switchable Polarization: Low-Voltage Operation, Unprecedentedly High Pyroelectric Performance, and Large Piezoelectric Effect in Polycrystalline Forms
Citations Over TimeTop 1% of 2019 papers
Abstract
Molecular ferroelectric crystals have attracted growing interest as potential alternatives to conventional lead-based ceramic ferroelectrics. We have recently discovered that a class of compounds known as plastic crystals can show multiaxial ferroelectricity, which allows ferroelectric performance even in polycrystalline forms. Here, we report new plastic/ferroelectric ionic molecular crystals that exhibit remarkably small coercive electric fields at room temperature. The easily switchable ferroelectric polarization enables low-voltage switching operations and high-frequency performance. Such ferroelectric crystals can be readily processed into bulk polycrystalline forms with desired shapes that are characterized by unprecedentedly high pyroelectric figures of merit and large piezoelectricity. These multifunctional molecular crystals represent highly attractive prospects for device elements with a diverse range of applications, which will significantly boost the development of molecular ferroelectric crystals.
Related Papers
- → Growth and pyroelectric property of 0.2 mol % Fe-doped Pb(Mg1/3Nb2/3)O3-0.38PbTiO3 single crystals measured by a dynamic technique(2004)23 cited
- → Atomic displacements in pyroelectric and piezoelectric crystals(1978)22 cited
- → High D* Pyroelectric Polyvinylfluoride Detectors(1971)83 cited
- → Pyroelectric and dielectric properties of pmn-based ceramics under dc bias(1991)19 cited
- → Analysis of Pyroelectric Figures of Merit by Using Off Polar Axis Cut Crystals(2010)1 cited