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

Huang, Cheng and Zhang, Q. M. and deBotton, Gal and Bhattacharya, Kaushik (2004) All-organic dielectric-percolative three-component composite materials with high electromechanical response. Applied Physics Letters, 84 (22). pp. 4391-4393. ISSN 0003-6951.

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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/cm(3) under an electric field of 20 V/mum can be induced.

Item Type:Article
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deBotton, Gal0000-0003-3608-1896
Bhattacharya, Kaushik0000-0003-2908-5469
Additional Information:© 2004 American Institute of Physics. Received 8 January 2004; accepted 1 April 2004; published online 12 May 2004. The authors gratefully acknowledge the financial support of this work by NIH under Grant No. 8R01EB002078-04 and Chinese National Natural Science Foundation under Contract No. 50228304.
Funding AgencyGrant Number
National Natural Science Foundation of China50228304
Subject Keywords:polymer films; dielectric thin films; dielectric materials; conducting polymers; composite materials; percolation; internal stresses; Young's modulus; permittivity; dielectric losses; electromechanical effects
Issue or Number:22
Record Number:CaltechAUTHORS:HUAapl04a
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1986
Deposited By: Tony Diaz
Deposited On:28 Feb 2006
Last Modified:02 Oct 2019 22:48

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