S
Stephen Ducharme
Researcher at University of Nebraska–Lincoln
Publications - 213
Citations - 8747
Stephen Ducharme is an academic researcher from University of Nebraska–Lincoln. The author has contributed to research in topics: Ferroelectricity & Dielectric. The author has an hindex of 45, co-authored 213 publications receiving 8107 citations. Previous affiliations of Stephen Ducharme include Argonne National Laboratory & IBM.
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Journal ArticleDOI
Two-dimensional ferroelectric films
A. V. Bune,A. V. Bune,Vladimir M. Fridkin,Vladimir M. Fridkin,Stephen Ducharme,Lev M. Blinov,Serguei P. Palto,A. V. Sorokin,S. G. Yudin,A. Zlatkin +9 more
TL;DR: In this article, it was shown that a first-order ferromagnetic phase transition with a transition temperature nearly equal to the bulk value can be found in trifluoroethylene polymers with diameters as small as 10'A (two monolayers) even in these almost two-dimensional films.
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Observation of the photorefractive effect in a polymer.
TL;DR: The observation of the photorefractive effect in an amorphous electro-optic material, the nonlinear polymer bisphenol A diglycidyl ether 4-nitro-1,2,phenylenediamine (bisA-NPDA) make photoconductive by doping with the hole transport agent diethylaminobenzaldehyde-diphenyl hydrazone.
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Efficiency enhancement in organic solar cells with ferroelectric polymers
Yongbo Yuan,Timothy J. Reece,Pankaj Sharma,Shashi Poddar,Stephen Ducharme,Alexei Gruverman,Yang Yang,Jinsong Huang +7 more
TL;DR: The devices show the unique characteristics of ferroelectric photovoltaic devices with switchable diode polarity and tunable efficiency, which are 10-20% higher than those achieved by other methods, such as morphology and electrode work-function optimization.
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Intrinsic ferroelectric coercive field
Stephen Ducharme,Vladimir M. Fridkin,Vladimir M. Fridkin,A. V. Bune,A. V. Bune,Serguei P. Palto,Lev M. Blinov,N. Petukhova,S. G. Yudin +8 more
TL;DR: The intrinsic coercive field is realized for the first time, in two-dimensional Langmuir-Blodgett polymer films as thin as 1 nm, in good agreement with the theoretical intrinsic value, exhibits the expected dependence on temperature, and does not depend on thickness below 15 nm.
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Electric energy density of dielectric nanocomposites
TL;DR: In this paper, the authors analyzed the effective permittivity, breakdown strength, and electric energy density of dielectric nanocomposites using an effective medium approximation, modeling the nanocompositionite as a three-phase material by the double-inclusion method.