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Ye, H. (author), Sokolovskij, R. (author), van Zeijl, H.W. (author), Gielen, A.W.J. (author), Zhang, G. (author)Solid State Lighting (SSL) systems, powered by light-emitting diodes (LEDs), are revolutionizing the lighting industry with energy saving and enhanced performance compared to traditional light sources. However, around 70%-80% of the electric power will still be transferred to heat. As the elevated temperature negatively affects the maximum...article 2014
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van Breemen, A.J.J.M. (author), van der Steen, J.L. (author), van Heck, G. (author), Wang, R. (author), Khiklovskyi, V. (author), Kemerink, M. (author), Gelinck, G.H. (author)In this paper, we demonstrate a scalable and low-cost memory technology using a phase separated blend of a ferroelectric polymer and a semiconducting polymer as data storage medium on thin, flexible polyester foils of only 25um thickness. By sandwiching this polymer blend film between rows and columns of metal electrode lines where each...article 2014
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van de Wiel, H.J. (author), Galagan, Y. (author), Van Lammeren, T.J. (author), De Riet, J.F.J. (author), Gilot, J. (author), Nagelkerke, M.G.M. (author), Lelieveld, R.H.C.A.T. (author), Shanmugam, S. (author), Pagudala, A. (author), Hui, D. (author), Groen, W.A. (author)Highly conductive screen printed metallic (silver) structures (current collecting grids) combined with poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) are a viable replacement for indium tin oxide (ITO) and inkjet printed silver as transparent electrode materials. To provide successful integration into organic photovoltaic ...article 2013
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- Angmo, D. (author), Gonzalez-Valls, I. (author), Veenstra, S. (author), Verhees, W. (author), Sapkota, S. (author), Schiefer, S. (author), Zimmermann, B. (author), Galagan, Y.O. (author), Sweelssen, J. (author), Lira-Cantu, M. (author), Andriessen, H.A.J.M. (author), Kroon, J.M. (author), Krebs, F.C. (author) article 2013
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Michels, J.J. (author), Moons, E. (author)The formation of the surface-induced stratified lamellar composition profile experimentally evidenced in spincoated layers of the photovoltaic donor-acceptor blend consisting of poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-5,5- (4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole]/ phenyl-C61-butyric acid methyl ester (APFO-3/PCBM), as processed from...article 2013
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Donkers, P.A.J. (author), Huinink, H.P. (author), Erich, S.J.F. (author), Reuvers, N.J.W. (author), Adan, O.C.G. (author)Coatings are used in a variety of applications. Last decades more and more coating systems are transforming from solvent to waterborne coating systems. In this study the influence of pigments on the water permeability of a waterborne coating system is studied, with special interest in the possible interfacial layer of additives around the...article 2013
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van Breemen, A. (author), Kam, B. (author), Cobb, B. (author), Rodriguez, F.G. (author), van Heck, G. (author), Myny, K. (author), Marrani, A. (author), Vinciguerra, V. (author), Gelinck, G.H. (author)In this paper, we successfully fabricated and operated passive matrix P(VDF-TrFE) transistor arrays, i.e. memory arrays in which no pass-transistors or other additional electronic components are used. Because of the smaller cell, a higher integration density is possible. We demonstrate arrays up to a size of 16 × 16, processed on thin (25 μm)...article 2013
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van der Ende, D.A. (author), Groen, W.A. (author), van der Zwaag, S. (author)High-strain environments, such as are found in automobile tires, provide deformation energy that can be harvested using piezoelectric materials, for instance, for powering electronics such as wireless sensors. Despite numerous efforts, none of the present devices easily satisfy the stringent operating and lifetime requirements for use inside a...article 2013
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Khikhlovskyi, V. (author), Gorbunov, A.V. (author), van Breemen, A.J.J.M. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author), Kemerink, M. (author)Storage of multiple bits per element is a promising alternative to miniaturization for increasing the information data density in memories. Here we introduce a multi-bit organic ferroelectric-based non-volatile memory with binary readout from a simple capacitor structure. The functioning of our multi-bit concept is quite generally applicable and...article 2013
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Bonefacino, J. (author), Tse, M.L.V. (author), Pun, C.F.J. (author), Cheng, X. (author), Chan, W.K.E. (author), Boersma, A. (author), Tam, H.Y. (author)A characterization of photophysical properties of 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3’-[3H]naphtha[2,1-b] [1,4]oxazine] (spirooxazine) and 1’,3’-dihydro-1’,3’,3’-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2’-(2H)-indole] (spi- ropyran) compounds hosted in poly(methyl methacrylate) (PMMA) was carried out. The parameters which influenced...article 2013
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Boersma, A. (author), Wiegersma, S. (author), Offrein, B.J. (author), Duis, J. (author), Delis, J. (author), Ortsiefer, M. (author), van Steenberge, G. (author), Karpinen, M. (author), van Blaaderen, A. (author), Corbett, B. (author)The increasing request for higher data speeds in the information and communication technology leads to continuously increasing performance of microprocessors. This has led to the introduction of optical data transmission as a replacement of electronic data transmission in most transmission applications longer than 10 meters. However, a need...conference paper 2013
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van de Ruit, K. (author), Cohen, R.I. (author), Bollen, D. (author), van Mol, T. (author), Yerushalmi-Rozen, R. (author), Janssen, R.A.J. (author), Kemerink, M. (author)The mechanism and magnitude of the in-plane conductivity of poly(3,4-ethy-lenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin films is determined using temperature dependent conductivity measurements for various PEDOT:PSS weight ratios with and without a high boiling solvent (HBS). Without the HBS the in-plane conductivity of PEDOT:PSS...article 2013
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van de Ruit, K. (author), Katsouras, I. (author), Bollen, D. (author), Van Mol, T. (author), Janssen, R.A.J. (author), de Leeuw, D.M. (author), Kemerink, M. (author)For its application as transparent conductor in light-emitting diodes and photovoltaic cells, both the in-plane and out-of-plane conductivity of PEDOT:PSS are important. However, studies into the conductivity of PEDOT:PSS rarely address the out-of-plane conductivity and those that do, report widely varying results. Here a systematic study of the...article 2013
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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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van der Wal, R. (author), Carton, E.P. (author), Parent, J.M. (author)Damage containment is one of the key factors for optimising operational readiness of warships after an internal warhead detonation. Ship designers currently have no other option than to rely on state of the art solutions applied in vehicle and personal protection; mainly ballistic composites. These solutions are prone to being traded off during...conference paper 2013
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Gehlhaar, R. (author), Cheyns, D. (author), van Willigenburg, L. (author), Hadipour, A. (author), Gilot, J. (author), Radbeh, R. (author), Aernouts, T. (author)The authors present experimental results on mechanically stacked organic solar modules and their advantage over standard tandem architectures. A four-terminal configuration of two single junction modules with complementary absorbing active layers uses the more efficient energy conversion of a tandem structure without the necessity of matching...conference paper 2013
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Theelen, M.J. (author), Habets, D. (author), Staemmler, L. (author), Winands, H. (author), Bolt, P.J. (author)Organosilicon coatings provide good optical and mechanical properties and are excellent candidates for the modification of the surface energy of polymers. These coatings can be deposited by plasma polymerization of hexamethyldisiloxane (HMDSO) under atmospheric pressure and at room temperature. The resulting films can range from soft,...article 2012
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Li, M. (author), Stingelin, N. (author), Michels, J.J. (author), Spijkman, M.-J. (author), Asadi, K. (author), Beerends, R. (author), Biscarini, F. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author)The processing of solution-based binary blends of the ferroelectric random copolymer poly(vinylidene fluoride-trifluoroethylene) P(VDF-TrFE) and the semiconducting polymer poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) applied by spin-coating and wire-bar coating is investigated. By systematic variation of blend composition, solvent, and deposition...article 2012
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Nicolai, H.T. (author), Hof, A. (author), Blom, P.W.M. (author)The charge transport and recombination in white-emitting polymer light- emitting diodes (PLEDs) are studied. The PLED investigated has a single emissive layer consisting of a copolymer in which a green and red dye are incorporated in a blue backbone. From single-carrier devices the effect of the green- and red-emitting dyes on the hole and...article 2012
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Scheerder, J. (author), Breur, R. (author), Slaghek, T. (author), Holtman, W. (author), Vennik, M. (author), Ferrari, G. (author)Exopolysaccharides (EPS) are a class of renewable polymers that show interesting anti-corrosive properties and could potentially be used as an alternative for zinc phosphates. When combined with a waterborne styrene-acrylic polymer dispersion (SA-1), exopolysaccharides were shown to give an improvement in the anti-corrosive performance....article 2012