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The Formation of Percolative Composites with a High Dielectric Constant and High Conductivity
Author(s) -
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
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203389
Subject(s) - dielectric , materials science , percolation (cognitive psychology) , conductivity , composite material , percolation threshold , composite number , constant (computer programming) , percolation theory , electrical resistivity and conductivity , permittivity , high κ dielectric , condensed matter physics , chemistry , electrical engineering , physics , optoelectronics , engineering , neuroscience , computer science , biology , programming language
The dielectric constant and electrical conductivity of a composite of two insulators, poly(1,1‐difluoroethylene) (yellow) and K 2 CO 3 (white), increased dramatically near the percolation threshold f c ( f =concentration of K 2 CO 3 ). This intriguing phenomenon can be interpreted in terms of interface percolation caused by the formation of chemically activated interfaces.