Abstract
Seeking for materials with high dielectric tunability and low coercive field is of great importance for the development and application of microwave tunable devices. In this work, inorganic and organic hybrid crystals (MV)[BiI3Cl2] were synthesized by using a solvothermal reaction method. Higher dielectric tunability (>70%) can be achieved for (MV)[BiI3Cl2] with an ultralow driving electric field (∼40 V/cm). The coercive electric field of (MV)[BiI3Cl2] is around three orders of magnitude lower than that of conventional organic oxides. Moreover, (MV)[BiI3Cl2] exhibits excellent electrical reliability related to the fatigue and the polarization retention property. The ultralow coercive electric field is ascribed to the quasi-one-dimensional structure of the Bi-I-Bi-I inorganic chain in inorganic and organic hybrid (MV)[BiI3Cl2].
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