RUAN Ya-Fei
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesJIANG Lin
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesWANG Jian-Lu
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesSUN Jing-Lan
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesLIU Ai-Yun
Key :aboratory for Optoelectroinc Materials and Devices,Shanghai Normal UniversityMENG Xiang-Jian
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesShanghai Institute of Technical Physics, Chinese Academy of Sciences,Shanghai Institute of Technical Physics, Chinese Academy of Sciences
The poly(vinylidenefluoride-trifluoroethylene)/Ag composite films are derived by spin-coating and annealed at hydrogen atmosphere. Ag(111) phase labeled at the diffraction peak 2θ=38.1 is observed from X-ray diffraction (XRD) pattern, and it was also proved from scanning electron microscope (SEM) images. A blue shift was observed in the infrared transmission spectrum of the composite films, which suggests the interaction of dipole and silver nanoparticles. The ferroelectric polarization and dielectric constant of P(VDF-TrFE)/Ag composite thin films increase by 32.5% and 13.3%, respectively, compared with the pure polymer films under air annealing. The dielectric loss tangent of the P(VDF-TrFE)/Ag composite films is independent of Ag doping ratios, which violates the percolation theory.
RUAN Ya-Fei, JIANG Lin, WANG Jian-Lu, SUN Jing-Lan, LIU Ai-Yun, MENG Xiang-Jian. The ferroelectric and dielectric properties of poly (vinylidenefluoride-trifluoroethylene) copolymer /Ag composite films[J]. Journal of Infrared and Millimeter Waves,2013,32(1):18~22
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