4.6 Article

BiFeO3-BaTiO3/P(VDF-TrFE) Multifunctional Polymer Nanocomposites

期刊

ACS APPLIED ELECTRONIC MATERIALS
卷 3, 期 2, 页码 743-751

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsaelm.0c00926

关键词

nanocomposite; multifunctionality; piezoelectricity; magnetoelectricity; photoactive material

资金

  1. National Key Research and Development Program of China [2017YFA0701301]
  2. National Natural Science Foundation of China [51373161, 51672261]

向作者/读者索取更多资源

Multifunctional materials were achieved by designing composites of P(VDF-TrFE) ferroelectric polymer and BiFeO3-BaTiO3 nanofibers, combining the properties of the polymer and nanofibers to improve dielectric, piezoelectric, and pyroelectric properties, as well as to create multiple functionalities such as ferromagnetism, magnetoelectric effect, photothermal effect, photostriction, and photo-electric response. The composite materials can detect mechanical, magnetic, and optical signals and generate actuation by electrical and optical stimuli.
Multifunctional materials which generate response under different stimuli are important for sensor and actuator applications. In this work, to achieve multifunctional materials, the composites of P(VDF-TrFE) ferroelectric polymer and BiFeO3-BaTiO3 nanofibers are designed in an attempt to exploit the ferroelectric properties of the polymer and the ferromagnetism and the optical response of the nanofibers. The addition of nanofibers not only improves the dielectric, piezoelectric, and pyroelectric properties of the polymer but also creates multiple functionalities, which include ferromagnetism, magnetoelectric effect, photothermal effect, photostriction, and photo-electric response. The functionalities are either from the properties of the nanofibers or the coupling effect of the physical properties between the fibers and the polymer. As a result, one single material can detect mechanical, magnetic, and optical signals and generate actuation by electrical and optical stimuli. The composite materials are promising for sensor and actuator applications to improve compactness and efficiency of the devices because of their multifunctionality. Because of high flexibility and mechanical reliability, the nanocomposites are also expected to be applied in flexible or wearable electronic devices.

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