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Khaliq, J. (author), Hoeks, T. (author), Groen, P. (author)
In this paper, we present a method to create a highly sensitive piezoelectric quasi 1–3 composite using a thermoplastic material filled with a piezoelectric powder. An up-scalable high-temperature dielectrophoresis (DEP) process is used to manufacture the quasi 1–3 piezoelectric polymer-ceramic composites. For this work, thermoplastic cyclic...
article 2019
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Bos, A. (author), Henselmans, R. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author)
To enable important scientific discoveries, ESO has defined a new ground-based telescope: the European Extremely Large Telescope (E-ELT). The baseline design features a telescope with a 39-m-class primary mirror (M1), making it the largest and most powerful telescope in the world. The M1 consists of 798 hexagonal segments, each about 1.4 m wide,...
article 2015
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Galagan, Y.O. (author), Mescheloff, A. (author), Veenstra, S.C. (author), Andriessen, H.A.J.M. (author), Katz, E.A. (author)
Stabilities of ITO-containing and ITO-free organic solar cells were investigated under simulated AM 1.5G illumination and under concentrated natural sunlight. In both cases ITO-free devices exhibit high stability, while devices containing ITO show degradation of their photovoltaic performance. The accelerated degradation under concentrated...
article 2015
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Sharma, K. (author), Williams, B.L. (author), Mittal, A. (author), Knoops, H.C.M. (author), Kniknie, B.J. (author), Bakker, N.J. (author), Kessels, W.M.M. (author), Schropp, R.E.I. (author), Creatore, M. (author)
article 2015
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Weiss, M. (author), Bucco, D. (author)
A framework is introduced to develop the theory of the adjoint method for models including both continuous and discrete dynamics. The basis of this framework consists of the class of impulsive linear dynamic systems. It allows extension of the adjoint method to more general models that include multirate subsystems or nonperiodic discrete events....
article 2015
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Nie, C. (author), Frijns, A.J.H. (author), Mandamparambil, R. (author), den Toonder, J.M.J. (author)
In this paper we introduce a microfluidic device ultimately to be applied as a wearable sweat sensor. We show proof-of-principle of the microfluidic functions of the device, namely fluid collection and continuous fluid flow pumping. A filter-paper based layer, that eventually will form the interface between the device and the skin, is used to...
article 2015
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van der Voort, M.M. (author), van Wees, R.M.M. (author), Brouwer, S.D. (author), van der Jagt-Deutekom, M.J. (author), Verreault, J. (author)
Forensic analysis of explosions consists of determining the point of origin, the explosive substance involved, and the charge mass. Within the EU fP7 project Hyperion, TNO developed the Inverse Explosion Analysis (TNO-IEA) tool to estïmate the charge mass and point of origin based on observed damage around an explosion. In this paper inverse...
article 2015
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Reuvers, N.J.W. (author), Huinink, H.P. (author), Adan, O.C.G. (author)
The water sorption mechanism in thin nylon 6 films is studied by 1H NMR imaging and relaxometry. Experiments using D2O and H2O enable identification of polymer and water signal components during the uptake process. Tracking the mobility and size of polymer and water components gives new insights into the water sorption mechanism of nylon 6. 1H...
article 2015
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Patil, B.R. (author), Shanmugam, S. (author), Teunissen, J.P. (author), Galagan, Y. (author)
All-solution processed organic solar cells with inverted device architecture were demonstrated. Devices contain opaque bottom electrodes and semitransparent top electrodes, resulting in top illuminated devices. Nanoparticles-based Ag ink was used for inkjet printing both top and bottom electrodes. Semi-transparent top electrode consists of high...
article 2015
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Oostra, A.J. (author), Blom, P.W.M. (author), Michels, J.J. (author)
Defects occurring during printing of the photoactive layer in organic solar cells lead to short-circuits due to direct contact between the PEDOT:PSS anode and metallic cathode. We provide a highly effective repair method where the defected zone with bare PEDOT:PSS is treated with aqueous sodium hypochlorite to locally disrupt the conductivity of...
article 2015
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Korkin, A. (author), Mueller, P. (author), Roozeboom, F. (author)
article 2015
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Verreault, J. (author)
The PELE ammunition is characterized by a low-density filling material surrounded by a high-density brittle jacket material. An analytical model describing the fragmentation of this ammunition behind a target plate is presented. This model assumes uniaxial strain in the filling and uses the RankingeHugoniot relations to calculate the material...
article 2015
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Lamont, C.A. (author), Eggenhuisen, T.M. (author), Coenen, M.J.J. (author), Slaats, T.W.L. (author), Andriessen, R. (author), Groen, P. (author)
For the solution processing of organic photovoltaics on an industrial scale, the exclusion of halogenated solvents is a necessity. However, the limited solubility of most semiconducting polymer/fullerene blends in non-halogenated solvents results in ink formulations with low viscosities which poses limitations to the use of roll-to-roll...
article 2015
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Zhang, S. (author), Rodriguez Urribarri, A. (author), Morales Hurtado, M. (author), Zeng, X. (author), van der Heide, E. (author)
To control tactile friction, that is the friction between fingertip and counter-body, the role of surface texture is required to be unveiled and defined. In this research, an experimental approach is used based on measuring tactile friction for directional texture (grooved channel) with varying depths. For a reference surface, in this current...
article 2015
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Wünscher, S. (author), Abbel, R. (author), Perelaer, J. (author), Schubert, U.S. (author)
Well-defined high resolution structures with excellent electrical conductivities are key components of almost every electronic device. Producing these by printing metal based conductive inks on polymer foils represents an important step forward towards the manufacturing of plastic electronic products on an industrial scale. The development of...
article 2014
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Wang, H. (author), Cobb, B. (author), van Breemen, A. (author), Gelinck, G.H. (author), Bao, Z. (author)
Carbon-nanotube top-gate transistors with fluorinated dielectrics are presented. With PTrFE as the dielectric, the devices have absent or small hysteresis at different sweep rates and excellent bias-stress stability under ambient conditions. Ambipolar single-walled carbon nanotube (SWNT) transistors are observed when P(VDF-TrFE-CTFE) is utilized...
article 2014
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van Deelen, J. (author), Klerk, L. (author), Barink, M. (author)
There is a gap in efficiency between record thin film cells and mass produced thin film solar panels. In this paper we quantify the effect of monolithic integration on power output for various configurations by modeling and present metallization as a way to improve efficiency of solar panels. Grid design and finger dimension optimization was...
article 2014
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Witvoet, G. (author), den Breeje, R. (author), Nijenhuis, J.R. (author), Hazelebach, R.L.M. (author), Doelman, N.J. (author)
Segmented primary mirror telescopes require dedicated piston-tip-tilt actuators for optimal optical performance. Netherlands Organisation for Applied Scientific Research (TNO) has developed various prototypes of such actuators, in particular for the E-ELT. This paper presents the dynamics analysis and feedback control results for a specific two...
article 2014
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Kusters, L.J.J. (author)
De zelfrijdende auto mag de openbare weg nog niet op. Maar zodra het zover is, zijn we een ergernis armer. Als 10% van de auto's automatisch op elkaar kan reageren, hebben we een kwart minder files.
article 2014
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Fischer, H.R. (author), Dillingh, E.C. (author), Hermse, C.G.M. (author)
The objective of this work is to study the common features and the evolution of microstructures of bituminous binders regardless of their grade (PEN 10/20 to 160/220) and source/origin using the atomic force microscope operated in phase contrast mode. All bituminous binders show the same microstructural features, consisting of three distinct...
article 2014
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