TITLE

Domain engineered ferroelectric energy harvesters on a substrate

AUTHOR(S)
M�nch, I.; Krau�, M.; Landis, C. M.; Huber, J. E.
PUB. DATE
May 2011
SOURCE
Journal of Applied Physics;May2011, Vol. 109 Issue 10, p104106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Phase-field modeling is used to study the domain evolution of nano-scaled ferroelectric devices influenced by the mechanical strain of an underlying substrate. The investigations focus on the design of the energy harvesting systems to convert mechanical into electrical energy. Mechanical energy is provided by an alternating in-plane strain in the substrate through bending or unidirectional stretching. Additionally, lattice mismatch between the substrate and the ferroelectric material induces epitaxial strain and controls the polarization behavior within the system. Further, electrical boundary conditions are used to stabilize the domain topology. Finite element simulations are employed to explore the performance of the engineered domain topologies in delivering electrical charge from mechanical deformation.
ACCESSION #
62010442

Tags: FERROELECTRIC devices;  ENERGY harvesting;  POLARIZATION (Electricity);  FERROELECTRICITY -- Research;  ELECTRONIC apparatus & appliances

 

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