Affiliation of Author(s):材料科学与技术学院

Journal:MATERIALS LETTERS

Key Words:Poly(vinylidene fluoride) Copper phthalocyanine Titanium dioxide Polymeric composites Electrical properties

Abstract:The hybrid of organic semiconductor copper phthalocyanine (CuPc) and inorganic semiconductor titanium dioxide (TiO2) was synthesized by a simple ball milling processing. Structural properties of CuPc-TiO2 composites were characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). The CuPc-TiO2 hybrid was used as nanofiller within flexible dielectric poly(vinylidene fluoride) (PVDF) matrix. The dispersion of fillers was characterized by cross-section scanning electron microscope (SEM). The conjugated structure of CuPc nanosheets in CuPc-TiO2 hybrid could provide huge p-associated orbital for electron delocalization and thus enhanced the dielectric constant of the corresponding PVDF composites. The dielectric constant of PVDF composite filled with 20%(CuPc-TiO2) ball-milling hybrid was 114.71 at 1 Hz, which was almost 7.8 times higher than the dielectric constant of 20% TiO2-PVDF composite and 20 times higher than that of the pure PVDF. (C) 2017 Elsevier B.V. All rights reserved.

ISSN No.:0167-577X

Translation or Not:no

Date of Publication:2017-12-15

Co-author:Liu, Bo

Correspondence Author:chentian