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Greatly Enhanced Energy Density and Patterned Films Induced by Photo Cross‐Linking of Poly(vinylidene fluoride‐chlorotrifluoroethylene)
Author(s) -
Chen XiangZhong,
Li ZhiWei,
Cheng ZhaoXi,
Zhang JiZong,
Shen QunDong,
Ge HaiXiong,
Li HaiTao
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201000478
Subject(s) - chlorotrifluoroethylene , materials science , pyroelectricity , ferroelectric polymers , ferroelectricity , dielectric , microelectronics , piezoelectricity , nanocomposite , polymer , fluoride , optoelectronics , polarization (electrochemistry) , surface energy , photolithography , thin film , composite material , nanotechnology , copolymer , tetrafluoroethylene , chemistry , inorganic chemistry
Greatly enhanced energy density in poly(vinylidene fluoride‐chlorotrifluoroethylene) [P(VDF‐CTFE)] is realized through interface effects induced by a photo cross‐linking method. Being different from nanocomposites with lowered dielectric strength, the cross‐linked P(VDF‐CTFE)s possess a high breakdown field as well as remarkably elevated polarization, both of which contribute to the enhanced energy density as high as 22.5 J · cm −3 . Moreover, patterned thin films with various shapes and sizes are fabricated by photolithography, which sheds new light on the integration of PVDF‐based electroactive polymers into organic microelectronic devices such as flexible pyroelectric/piezoelectric sensor arrays or non‐volatile ferroelectric memory devices.