All-organic dielectric-percolative three-component composite materials with high electromechanical response

By combining the high-dielectric copper phthalocyanine oligomer (PolyCuPc) and conductive polyanline (PANI) within polyurethane (PU) matrix an all-organic three-component dielectric-percolative composite with high dielectric constant is demonstrated. In this three-component composite system, the hig...

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Veröffentlicht in:Applied physics letters 2004-05, Vol.84 (22), p.4391-4393
Hauptverfasser: Huang, Cheng, Zhang, Q. M., deBotton, Gal, Bhattacharya, Kaushik
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container_issue 22
container_start_page 4391
container_title Applied physics letters
container_volume 84
creator Huang, Cheng
Zhang, Q. M.
deBotton, Gal
Bhattacharya, Kaushik
description By combining the high-dielectric copper phthalocyanine oligomer (PolyCuPc) and conductive polyanline (PANI) within polyurethane (PU) matrix an all-organic three-component dielectric-percolative composite with high dielectric constant is demonstrated. In this three-component composite system, the high-dielectric-constant PolyCuPc particulates enhance the dielectric constant of the PU matrix and this combined two-component dielectric matrix in turn serves as the high-dielectric-constant host for the PANI to realize percolative phenomenon and further enhance the dielectric response. As a result, an electromechanical strain of 9.3% and elastic energy density of 0.4 J/cm3 under an electric field of 20 V/μm can be induced.
doi_str_mv 10.1063/1.1757632
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title All-organic dielectric-percolative three-component composite materials with high electromechanical response
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