Special Issue: Advances in Functional Materials; Guest Editors: Xiaoping Li, Li Lu, Jiangping Tu, Xinbin Zhao and Tiejun ZhuNo Access

DIELECTRIC BEHAVIOR OF NOVEL ACETYLENE BLACK–PVDF/BaTiO₃ TRI-PHASE COMPOSITE FILM

QIAN CHEN

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China

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LU JIN

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China

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WENJIAN WENG

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China

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GAORONG HAN

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China

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, and

PIYI DU

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China

Corresponding author.

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https://doi.org/10.1142/S0218625X08010889Cited by:3 (Source: Crossref)

Abstract

A novel three-phase film with conductive acetylene black (AB) and ferroelectric phase (BaTiO₃) introduced intoβ-polyvinylidene fluoride (β-PVDF) was prepared by using dip-coating method. The high dielectric constant of 650 can be obtained in the AB–PVDF/BaTiO₃ composite film when AB content approached the percolation threshold (3.3 vol%), which is 40 times more than that of (PVDF + BaTiO₃) matrix. The dielectric constant of the composite film is almost independent of frequency.

Keywords:

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