Searched for: subject%3A%22Electric%255C%2Bfield%22
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Visschers, F.L.L. (author), Massaad, J. (author), van Neer, P.L.M.J. (author), Verweij, M.D. (author), Liu, D. (author), Broer, D.J. (author)
article 2022
document
Guo, Y. (author), van Ravensteijn, B.G.P. (author), Kegel, W.K. (author)
Dimple colloids with well-defined cavities were synthesized by a modified dispersion polymerization. The key step in the procedure is the delayed addition of crosslinkers into the reaction mixture. By systematically studying the effect of the delayed addition time and the concentration of the cross-linker on the resulting particle morphology, we...
article 2019
document
Veldhuizen, L.W. (author), Adhyaksa, G.W.P. (author), Theelen, M. (author), Garnett, E.C. (author), Schropp, R.E.I. (author)
In this study, we assess the charge carrier diffusive transport quality of traditional and emerging thin-film photoactive absorber materials used for photovoltaic applications. We use a steady-state photocarrier grating technique, which has so far been predominantly used for amorphous silicon-based materials, to obtain ambipolar diffusion...
article 2017
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Li, W.W. (author), Radacsi, N. (author), Kramer, H.J.M. (author), van der Heijden, A.E.D.M. (author), ter Horst, J.H. (author)
When applied to a pure component suspension in an apolar solvent, a strong inhomogeneous electric field induces particle movement, and the particles are collected at the surface of one of the two electrodes. This new phenomenon was used to separately isolate two organic crystalline compounds, phenazine and caffeine, from their suspension in 1,4...
article 2016
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Cheng, C. (author), van der Poel, A.P.P. (author), Jansen, P. (author), Quintero Pérez, M. (author), Wall, T.E. (author), Ubachs, W. (author), Bethlem, H.L. (author)
The resolution of any spectroscopic or interferometric experiment is ultimately limited by the total time a particle is interrogated. Here we demonstrate the first molecular fountain, a development which permits hitherto unattainably long interrogation times with molecules. In our experiments, ammonia molecules are decelerated and cooled using...
article 2016
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Roodenburg, B. (author), de Haan, S.W.H. (author), Ferreira, J.A. (author), Coronel, P. (author), Wouters, P.C. (author), Hatt, V. (author)
Generally, high grade products such as pulsed electric field (PEF) treated fruit juices are packaged after their preservative treatment. However, PEF treatment after packaging could avoid recontamination of the product and becomes feasible when electric field pulses of sufficient magnitude can be generated inside closed food containments....
article 2013
document
van den Ende, D.A. (author), Kamminga, J.D. (author), Boersma, A. (author), Andritsch, T. (author), Steeneken, P.G. (author)
Wrinkling of elastomeric coatings by an electric field is reported. The associated changes in the coating's optical properties yield switchable mirrors and windows. The field Ec needed to induce wrinkling is a factor of 4.4 lower than the theoretically predicted value, which is attributed to space-charge injection. Copyright © 2013 WILEY-VCH...
article 2013
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van den Ende, D.A. (author), Fischer, H.R. (author), Groen, W.A. (author), van der Zwaag, S. (author)
The meso-scale surface roughness of piezoelectric fiber composites can be manipulated by applying an electric field to a piezocomposite with a polished surface. In the absence of an applied voltage, the tips of the embedded piezoelectric ceramic fibers are below the surface of the piezocomposite and a silicon wafer counter surface rests solely...
article 2013
document
van den Ende, D.A. (author), Maier, R.A. (author), van Neer, P.L.M.J. (author), van der Zwaag, S. (author), Randall, C.A. (author), Groen, W.A. (author)
In this work, the piezoelectric properties at high electric fields of dielectrophoretically aligned PZT - polymer composites containing high aspect ratio particles (such as short fibers) are presented. Polarization and strain as a function of electric field are evaluated. The properties of the composites are compared to those of PZT-polymer...
article 2013
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Lindenburg, P.W. (author), Tempels, F.W.A. (author), Tjaden, U.R. (author), van der Greef, J. (author), Hankemeier, T. (author)
Electroextraction (EE) takes place in a two-phase liquid-liquid system, consisting of an aqueous and an organic phase, where an applied electric field causes ions to be extracted from one phase into the other, to be concentrated close after the liquid-liquid interface. The extraction takes place in a wide-bore capillary that is connected to a 2...
article 2012
document
Radacsi, N. (author)
Crystallization is one of the oldest separation and product formation techniques that continues to be in use today. Despite its long history, it only started to develop significantly in the past few decades. In this thesis, the application of Process Intensification in crystallization is investigated. Process Intensification is a set of often...
doctoral thesis 2012
document
Li, X. (author), Kadashchuk, A. (author), Fishchuk, I.I. (author), Smaal, W.T.T. (author), Gelinck, G.H. (author), Broer, D.J. (author), Genoe, J. (author), Heremans, P. (author), Bässler, H. (author)
While it is known that the charge-carrier mobility in organic semiconductors is only weakly dependent on the electric field at low fields, the experimental mobility in organic field-effect transistors using silylethynyl-substituted pentacene is found to be surprisingly field dependent at low source-drain fields. Corroborated by scanning Kelvin...
article 2012
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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
Roodenburg, B. (author), de Haan, S.W.H. (author), van Boxtel, L.B.J. (author), Hatt, V. (author), Wouters, P.C. (author), Coronel, P. (author), Ferreira, J.A. (author), TNO Kwaliteit van Leven (author)
Nowadays Pulsed Electric Field (PEF) treatment of food needs to be performed prior to packaging, either hygienic or aseptic packaging is necessary. New techniques for PEF treatment after packaging can be considered when plastic conductive (film) electrodes can be integrated within the package, so that the package and the product can be treated...
article 2010
document
van den Ende, D.A. (author), Bory, B.F. (author), Groen, W.A. (author), van der Zwaag, S. (author), TNO Industrie en Techniek (author)
The dielectric and piezoelectric properties of piezoelectric particleepoxy polymer composites structured into 1-3 composites via dielectrophoresis during curing are reported. The dielectrophoretic alignment induces a textured microstructure in the composite, with particles forming chains in the direction of the electric field. The particles form...
conference paper 2010
document
Zhang, Y. (author), Blom, P.W.M. (author)
The field- and temperature dependence of the charge transport in solution-processed poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) doped with tetrafluoro- tetracyanoquinodimethane (F4-TCNQ) is investigated. Conventional charge transport models based on a density- and field-dependent mobility in combination with a constant...
article 2010
document
TNO Defensie en Veiligheid (author), Naus, H.W.L. (author)
The response of ion plasmas to external radiation fields is investigated in a quantum mechanical formalism.We focus on the total electric field within the plasma. For general bandpass signals three frequency regions can be distinguished in terms of the plasma frequency. For low frequencies, the external field is shielded. For high frequencies,...
article 2010
document
Jellema, L.C. (author), Mey, T. (author), Koster, S. (author), Verpoorte, E. (author), TNO Kwaliteit van Leven (author)
A new microfluidic approach for charge-based particle separation using combined hydrodynamic and electrokinetic effects is presented. A recirculating flow pattern is employed, generated through application of bi-directional flow in a narrow glass microchannel incorporating diverging or converging segments at both ends. The bi-directional flow in...
article 2009
document
Teisseyre, H. (author), Kamińska, A. (author), Franssen, G. (author), Dussaigne, A. (author), Grandjean, N. (author), Grzegory, I. (author), Łucznik, B. (author), Suski, T. (author), TNO Defensie en Veiligheid (author)
High quality GaN/AlGaN multiquantum well (QW) structures were grown by ammonia molecular beam epitaxy along the (0001) polar and (11 2̄0) nonpolar directions. Each sample contains three QWs with thicknesses of 2, 3, and 4 nm as well as 10 nm Al0.30Ga0.70N barriers. The measured photoluminescence (PL) spectrum consists of three peaks originating...
article 2009
document
Bhattacharya, R. (author), de Kok, M.M. (author), Zhou, J. (author), TNO Industrie en Techniek (author)
We present a simple fabrication process that produces polymeric charge storage devices directly onto a textile surface. By using a coating of poly-(3,4-ethylenedioxythiophene):poly(styrene sulphonic acid) (PEDOT) as a solid electrolytic layer deposited between two woven silver coated polyamide yarns, we have created a simple polymeric textile...
article 2009
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