Mechanical constraints enhance electrical energy densities of soft dielectrics | Zendy

Lin Zhang | Zendy; Qiming Wang | Zendy; Xuanhe Zhao | Zendy

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Mechanical constraints enhance electrical energy densities of soft dielectrics

Author(s) -

Lin Zhang,

Qiming Wang,

Xuanhe Zhao

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3655910

Subject(s) - dielectric , materials science , electrical breakdown , electric potential energy , dielectric strength , voltage , electronics , engineering physics , optoelectronics , electrical engineering , composite material , energy (signal processing) , physics , engineering , quantum mechanics

Dielectrics are essential components in modern electronics and electric systems. When a sufficiently high voltage is applied on a layer of a dielectric, the dielectric will breakdown electrically. The breakdown limits the electrical energy density of the dielectric. We show that constraining the deformation of soft dielectrics can greatly enhance their breakdown electric fields and thus increase their electrical energy densities. The mechanical constraints suppress electromechanical instabilities, a major cause for electrical breakdowns in soft dielectrics.

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