Searched for: subject%3A%22Ferroelectric%255C%2Bpolarization%22
(1 - 7 of 7)
document
Lenz, T. (author), Sharifi Dehsari, H. (author), Asadi, K. (author), Blom, P.W.M. (author), Groen, W.A. (author), de Leeuw, D.M. (author)
We demonstrate that ferroelectric memory diodes can be utilized as switching type positive temperature coefficient (PTC) thermistors. The diode consists of a phase separated blend of a ferroelectric and a semiconducting polymer stacked between two electrodes. The current through the semiconducting polymer depends on the ferroelectric...
article 2016
document
Gelinck, G.H. (author), van Breemen, A.J.J.M. (author), Cobb, B. (author)
Ferroelectric polarization switching of poly(vinylidene difluoride-trifluoroethylene) is investigated in different thin-film device structures, ranging from simple capacitors to dual-gate thin-film transistors (TFT). Indium gallium zinc oxide, a high mobility amorphous oxide material, is used as semiconductor. We find that the ferroelectric can...
article 2015
document
Kam, B. (author), Li, X. (author), Cristoferi, C. (author), Smits, E.C.P. (author), Mityashin, A. (author), Schols, S. (author), Genoe, J. (author), Gelinck, G.H. (author), Heremans, P. (author)
In this work, we investigate the ferroelectric polarization state in metal-ferroelectric-semiconductor-metal structures and in ferroelectric field-effect transistors (FeFET). Poly(vinylidene fluoride-trifluoroethylene) and pentacene was used as the ferroelectric and semiconductor, respectively. This material combination in a bottom gate-top...
article 2012
document
Brondijk, J.J. (author), Asadi, K. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author)
Most of the envisaged applications of organic electronics require a nonvolatile memory that can be programmed, erased, and read electrically. Ferroelectric field-effect transistors (FeFET) are especially suitable due to the nondestructive read-out and low power consumption. Here, an analytical model is presented that describes the charge...
article 2012
document
Asadi, K. (author), de Bruyn, P. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author)
We have investigated the efficiency enhancement of organic solar cells upon incorporation of a thin ferroelectric polymer layer. For non-Ohmic contacts the enhancement is due to an increased open circuit voltage, which is, however, independent of the ferroelectric polarization direction. Ferroelectricity cannot play a role due to depolarization...
article 2011
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Asadi, K. (author), Wildeman, J. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
Resistive switches have been fabricated using a phase-separated blend film of ferroelectric random copolymer poly(vinylidene fluoride-co-trifluoroethylene) with the organic semiconductor regio-irregular poly(3-hexylthiophene) (rir-P3HT). Spin-coated blend films have been contacted with symmetrical Ag top and Ag bottom electrodes, yielding...
article 2010
document
Asadi, K. (author), de Boer, T.G. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
Organic non-volatile resistive bistable diodes based on phase-separated blends of ferroelectric and semiconducting polymers are fabricated. The polarization field of the ferroelectric modulates the injection barrier at the semiconductor-electrode contact and, hence, the resistance of the comprising diodes. Comparison between the on- and off...
article 2009
Searched for: subject%3A%22Ferroelectric%255C%2Bpolarization%22
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