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Langanke, J. (author), Arfsten, N. (author), Buskens, P. (author), Habets, R. (author), Klankermayer, J. (author), Leitner, W. (author)Scratch resistant sol-gel metal oxide coatings typically require a thermal post-treatment step (curing process) at temperatures between 400 and 700 C. In this report, we demonstrate that the in situ generation of amines within sol-gel films facilitates the preparation of scratch resistant metal oxide coatings at a curing temperature of 250 C. A...article 2013
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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 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 der Heide, E. (author), Zeng, X. (author), Masen, M.A. (author)The application of tribological knowledge is not just restricted to optimizing mechanical and chemical engineering problems. In fact, effective solutions to friction and wear related questions can be found in our everyday life. An important part is related to skin tribology, as the human skin is frequently one of the interacting surfaces in...article 2013
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Fischer, H.R. (author), Butenko, Y.V. (author), Mooney, C. (author), Semprimoschnig, C. (author), Verkuijlen, M.H.W. (author), van Eck, E.R.H. (author), Gerber, T. (author)Accelerated testing of white thermal control coatings was performed using the high intensity UV radiation generated by a synchrotron and resulting in a substantial shortening of test times. The origin of coloration of metal oxides upon UV irradiation has been identified to be most likely a generation of oxygen vacancies connected with the...conference paper 2013
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Cuypers, R. (author), de Jong, A.J. (author), Eversdijk, J. (author), van 't Spijker, J.C. (author), Oversloot, H.P. (author), Ingenhut, B.L.J. (author), Cremers, R.K.H. (author), Papen-Botterhuis, N.E. (author)Thermochemical storage is a new and emerging long-term thermal storage for residential use (cooling, heating & domestic hot water generation), offering high thermal storage density without the need for thermal insulation during storage (Fig. 1). However, existing materials for thermochemical storage either suffer from practical issues like...conference paper 2013
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Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author), Burghoorn, M.M.A. (author), Roosen-Melsen, D.A. (author), de Riet, J.F.J. (author), Sabik, S. (author), Vroon, Z.A.E.P. (author), Yakimets, I. (author), Buskens, P.J.P. (author)Anti-reflective coatings (ARCs) are used to lower the reflection of light on the surface of a substrate. Here, we demonstrate that the two main drawbacks of moth eye-structured ARCs-i.e., the lack of suitable coating materials and a process for large area, high volume applications-can be largely eliminated, paving the way for cost-efficient and...article 2013
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Abadjieva, E. (author), van der Heijden, A.E.D.M. (author), Creyghton, Y.L.M. (author), van Ommen, J.R. (author)Fluorocarbon coatings have been deposited on micron-sized silica particles by means of atmospheric pressure plasma-enhanced chemical vapor deposition (PECVD). The silica particles have a diameter in the range between 40 and 70 ?m. They are fluidized at atmospheric pressure in a circulating fluidized bed combined with a dielectric barrier...article 2012
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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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Eversdijk, J. (author), Erich, S.J.F. (author), Hermanns, S.P.M. (author), Adan, O.C.G. (author), de Bolle, M. (author), de Meyer, K. (author), Bylemans, D. (author), Bekker, M. (author), ten Cate, A.T. (author)This paper focuses on the use of modified nano-clay particles as a controlled release system for biocides from building materials. Different (model) biocides were incorporated in a biocide/nano-clay composite and subsequently the release of the biocides was monitored under different environmental conditions. In addition, the biocide/clay...article 2012
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Zhang, X. (author), Buter, S. (author), Ferrari, G. (author), Prent, C.S.W. (author)The application of coatings in ballast water tanks is critical for the safety of cargo ships. International Maritime Organization (IMO) has delivered a standard for the protection of water ballast tanks in which new built cargo vessels have to comply with {resolution MSC.215(82)}. In case the procedure of applying coatings differs from the IMO...conference paper 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
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Qin, Y. (author), Turkenburg, D.H. (author), Barbu, I. (author), Smaal, W.T.T. (author), Myny, K. (author), Lin, W.Y. (author), Gelinck, G.H. (author), Heremans, P. (author), Liu, J. (author), Meinders, E.R. (author)An upscalable, self-aligned patterning technique for manufacturing high-performance, flexible organic thin-film transistors is presented. The structures are self-aligned using a single-step, multi-level hot embossing process. In combination with defect-free anodized aluminum oxide as a gate dielectric, transistors on foil with channel lengths...article 2012
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Ferrari, G.M. (author), Buter, S.J. (author), Zhang, X. (author), Prent, C.S.W. (author)Corrosion protection of ballast water tanks is very precarious because of the aggressiveness of the environment and the difficult accessibility of the areas. Numerous accidents have led to regulation by the International Maritime Organization (IMO). Practical circumstances in yards are often not ideal; therefore it is of interest to investigate...conference paper 2012
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Turkenburg, D.H. (author), Chin, P.T.K. (author), Fischer, H.R. (author)We describe a water dispersed nano sensor cocktail based on InP/ZnS quantum dots (QDs) and atomic silver clusters with a bright and visible luminescence combined with optimized sensor functionalities for the water flooding process. The QDs and Ag nano sensors were tested in simulated reservoir conditions (high salinity, Ca2+, pH, high...conference paper 2012
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Cuypers, R. (author), Maraz, N. (author), Eversdijk, J. (author), Finck, C.J. (author), Henquet, E.M.P. (author), Oversloot, H.P. (author), van 't Spijker, J.C. (author), de Geus, A.C. (author)In our laboratories, a seasonal thermochemical storage system for dwellings and offices is being designed and developed. Based on a thermochemical sorption reaction, space heating, cooling and generation of domestic hot water will be achieved with up to 100% renewable energy, by using solar energy and waste heat. Development of the reactor and...article 2012
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George, A. (author), Stawski, T.M. (author), Unnikrishnan, S. (author), Veldhuis, S.A. (author), ten Elshof, J.E. (author)A simple and cost effective methodology for large area micro and nanopatterning of a wide range of functional materials on flexible substrates is presented. A hydrophobic-hydrophilic chemical contrast was patterned on surfaces of various flexible plastic substrates using molds and shadow masks with which selected areas of the substrate surface...article 2012
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Cheng, L.K. (author), Boersma, A. (author), Jansen, T.H. (author)A coating based FBG humidity sensor is developed for distributed humidity sensing. The sensitivity of the coated FBG is optimized by varying the chemical composition and the thickness of the coating. A sensitivity of ~2 pm/%RH and a rapid response are demonstrated. The composition of the coating can be adapted for sensing other chemical elements...conference paper 2012
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Ren, M. (author), Sweelssen, J. (author), Grossiord, N. (author), Gorter, H. (author), Eggenhuisen, T.M. (author), Andriessen, H.A.J.M. (author)Large-scale production of organic photovoltaics (OPVs) at low cost is, still, a future concept thought to promote the market share of solar energy. Working towards the roll-to-roll production of OPVs, different compatible deposition techniques are investigated. Inkjet printing is a promising candidate, as it allows the contact-free deposition of...article 2012