The Formation of Percolative Composites with a High Dielectric Constant and High Conductivity

The dielectric constant and electrical conductivity of a composite of two insulators, poly(1,1‐difluoroethylene) (yellow) and K2CO3 (white), increased dramatically near the percolation threshold fc (f=concentration of K2CO3). This intriguing phenomenon can be interpreted in terms of interface percol...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2012-09, Vol.51 (36), p.9123-9127
Main Authors: Wang, Mingsong, Zhu, Jiliang, Zhu, Wenliang, Zhu, Bo, Liu, Jing, Zhu, Xiaohong, Pu, Yunti, Sun, Ping, Zeng, Zifan, Li, Xuhai, Yuan, Daqing, Zhu, Shengyun, Pezzotti, Giuseppe
Format: Article
Language:English
Subjects:
Activated
composites
Conductivity
Dielectric constant
Electrical conductivity
Electrical resistivity
Formations
Insulators
interfaces
Percolation
Resistivity
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Summary:The dielectric constant and electrical conductivity of a composite of two insulators, poly(1,1‐difluoroethylene) (yellow) and K2CO3 (white), increased dramatically near the percolation threshold fc (f=concentration of K2CO3). This intriguing phenomenon can be interpreted in terms of interface percolation caused by the formation of chemically activated interfaces.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201203389