Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 32, Issue 1, Pages 94-99Publisher
WILEY-BLACKWELL
DOI: 10.1002/marc.201000478
Keywords
crosslinking; energy density; lithography; pattern; poly(vinylidene fluoride-chlorotrifluoroethylene)
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Funding
- National Natural Science Foundation of China [20574035, 20774040]
- Scientific Research Foundation of Graduate School of Nanjing University [2010CL06]
- Jiangsu Contake Fluorine Chemical Co., Ltd
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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.
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