TY - JOUR
T1 - Superior electrostrictive strain achieved under low electric fields in relaxor ferroelectric polymers
AU - Zhang, Zhicheng
AU - Wang, Xiao
AU - Tan, Shaobo
AU - Wang, Qing
N1 - Funding Information:
This work was nancially supported by the National Natural Science Foundation of China-NSFC (No. 51773166, 51573146, 51103115), Fundamental Research Funds for the Central Universities (No. XJJ2013075, cxtd2015003), Natural Science Basic Research Plan in Shaanxi Province of China (No. 2016JQ2010), and China Postdoctoral Science Foundation Funded Project (2015M582633). This research was supported by the HPC Platform, Xi'an Jiaotong University.
Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - Ferroelectric polymers represented by poly(vinylidene fluoride-trifluoroethylene) show great potential for applications in actuators, sensors and artificial muscles. However, the excellent electrostrictive properties of ferroelectric polymers are achieved under high applied electric fields, which not only reduce their lifetime and reliability but also significantly limit their applications in wearable electronics and sensors. Here, we report a new class of relaxor ferroelectric polymers, which exhibits outstanding relaxor ferroelectric behavior including the highest dielectric constant of 75 among the known polymers, the maximum displacement of 12.3 μC cm-2, and a great dielectric strength of 400 MV m-1. Notably, the record electrostrictive strains in comparison to the state-of-the-art ferroelectric polymers have been achieved at both low applied electric fields, e.g. -2.5% at 50 MV m-1 and high electric fields, e.g. -13.4% at 275 MV m-1. The actuation of the relaxor polymer film can be driven even by using a household voltage of 220 V. In addition, the prepared polymer displays the highest elastic energy density and the best electromechanical conversion efficiency when compared to the current ferroelectric polymers.
AB - Ferroelectric polymers represented by poly(vinylidene fluoride-trifluoroethylene) show great potential for applications in actuators, sensors and artificial muscles. However, the excellent electrostrictive properties of ferroelectric polymers are achieved under high applied electric fields, which not only reduce their lifetime and reliability but also significantly limit their applications in wearable electronics and sensors. Here, we report a new class of relaxor ferroelectric polymers, which exhibits outstanding relaxor ferroelectric behavior including the highest dielectric constant of 75 among the known polymers, the maximum displacement of 12.3 μC cm-2, and a great dielectric strength of 400 MV m-1. Notably, the record electrostrictive strains in comparison to the state-of-the-art ferroelectric polymers have been achieved at both low applied electric fields, e.g. -2.5% at 50 MV m-1 and high electric fields, e.g. -13.4% at 275 MV m-1. The actuation of the relaxor polymer film can be driven even by using a household voltage of 220 V. In addition, the prepared polymer displays the highest elastic energy density and the best electromechanical conversion efficiency when compared to the current ferroelectric polymers.
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U2 - 10.1039/c8ta11938d
DO - 10.1039/c8ta11938d
M3 - Article
AN - SCOPUS:85062604991
SN - 2050-7488
VL - 7
SP - 5201
EP - 5208
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 10
ER -