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de Amorim Soares, G. (author), Carolus, J. (author), Daenen, M. (author), Masolin, A. (author), Birrenbach, T. (author), Gerber, A. (author), Wrigley, A. (author), Henzel, J. (author), Roosen, D. (author), Meuris, M. (author), Theelen, M.J. (author)
A round robin test was carried out in four PV laboratories to compare accelerated lifetime testing. Twenty commercial non-packaged CIGS solar cells of similar performance were spread and exposed to damp heat con-ditions (85 ◦C and 85% RH) for approximately 500 h. Their JV performance was monitored during the damp heat exposure. After the test,...
article 2021
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Caron, J.F. (author), Bäumer, S.M.B. (author)
The aberrations of reflective optical systems with one plane of symmetry are investigated in the most general case, with freeform surfaces and possibly different locations of the tangential and sagittal object and image. In this first paper in a series of two, we establish generalized ray-tracing equations including transverse aberrations up to...
article 2021
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Caron, J.F. (author), Bäumer, S.M.B. (author)
The aberrations of reflective optical systems with planar symmetry are investigated in the most general case, with freeform surfaces and possibly different locations of the tangential and sagittal object and image. In this second and last paper, closed-form expressions are derived for the aberrations created by an individual mirror. We study two...
article 2021
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Schenk, D. (author)
Over een aantal jaar moet op bijna 3 km hoogte, op een bergtop in Chili, ’s werelds grootste telescoop verrijzen. Deze Extremely Large Telescope (ELT) wordt gebouwd door de Europese Zuidelijke Sterrenwacht (ESO). De onderdelen worden momenteel op allerlei plekken ter wereld in elkaar gesleuteld, waaronder in Nederland. Zo zal TNO samen met het...
article 2021
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Smirnov, Y. (author), Schmengler, L. (author), Kuik, R. (author), Repecaud, P.A. (author), Najafi, M. (author), Zhang, D. (author), Theelen, M. (author), Aydin, E. (author), Veenstra, S. (author), de Wolf, S. (author), Morales-Masis, M. (author)
Sputtered transparent conducting oxides (TCOs) are widely accepted transparent electrodes for several types of high-efficiency solar cells. However, the different sputtering yield of atoms makes stoichiometric transfer of target material challenging for multi-compounds. Additionally, the high kinetic energies of the arriving species may damage...
article 2021
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Pil, A. (author)
TNO en Demcon Focal helpen bij het ontwerp en de bouw van het totale laser guide star-projectiesysteem voor de Extremely Large Telescope.
article 2021
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Luo, X. (author), Grossbichler, M. (author), Waschl, H. (author), Donkers, M.C.F. (author), de Jager, B. (author), Willems, F.P.T. (author)
When controlled in an open-loop fashion, both stationary and dynamical diesel engine performance can deteriorate due to disturbances. Although cycle-to-cycle fuel injection control has the potential of reducing the performance degradation by manipulating the fueling profile in real time, this potential has not been thoroughly studied. This is...
article 2021
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Ros, J.A. (author), Doedée, V. (author), van den Akker, J.T. (author), Vredeveldt, A.W. (author), Linders, M.J.G. (author), Goetheer, E.L.V. (author), Garcia Moretz-Sohn Monteiro, J. (author)
The maritime industry has set clear objectives towards reducing greenhouse gas emissions in the coming decades. Ship based carbon capture (SBCC) could play a large role in reducing these emissions on the short term. This study gives an update on the work that has been conducted towards carbon capture and storage on LNG fuelled vessels. This is...
conference paper 2021
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Prabowo, B. (author), Zheng, G. (author), Mehrpoo, M. (author), Patra, B. (author), Harvey-Collard, P. (author), Dijkema, J. (author), Sammak, A. (author), Scappucci, G. (author), Charbon, E. (author), Sebastiano, F. (author), Vandersypen, L.M.K. (author), Babaie, M. (author)
Quantum computers (QC) promise to solve certain computational problems exponentially faster than a classical computer due to the superposition and entanglement properties of quantum bits (qubits). Among several qubit technologies, spin qubits are a promising candidate for large-scale QC, since (1) they have a small footprint allowing them to be...
conference paper 2021
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Koodly Ravishankara, A. (author), Özdemir, H. (author), van der Weide, E. (author)
The surface of wind turbine blades are prone to degradation due to exposure to the elements. Rain, hail, insects are among the many causes of turbine blade degradation or erosion. Surface degradation of the wind turbine blades leads to a reduction in the aerodynamic performance, resulting in power losses. The effect of surface degradation is...
article 2021
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Kenworthy, C.F. (author), Stoevelaar, L.P. (author), Alexander, A.J. (author), Gerini, G. (author)
In this paper, we report the effect of optical trapping on the enhancement factor for Raman spectroscopy, using a dielectric metasurface. It was found that a higher enhancement factor (up to 275%) can be obtained in a substrate immersed in water, where particles are freee to move, compared to a dried substrate, where the particles (radius r = 9...
article 2021
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Jo, Y. (author), Kwon, J. (author), van der Steen, J.L.J. (author), A. Kronemeijer, A. (author), Jung, S. (author)
Here, we present a pseudo-CMOS NOR gate array based on dual-gate amorphous indium-gallium-zinc oxide thin-film transistors (TFTs) on plastic. We fabricated a 14 × 12 array of NOR gates which was programmed using laser-induced forward transfer printing technology to realize a negative-edge-triggered D flip-flop. Two drive transistors in a...
article 2021
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Saathof, R. (author), Meskers, A.J.H. (author), van Kempen, F.C.M. (author), Witvoet, G. (author), Korevaar, C.W. (author), de Lange, T.J. (author), Crowcombe, E.E. (author), Fritz, E.C. (author), van de Pol, M. (author)
Optical satellite communications is a maturing technology to enable word-wide access to high throughput internet. In the past years a lot of effort has been taken to increase the applicability and the TRL of this technology. In collaboration with industry, TNO initiated several developments for space and ground technologies. Many of these...
conference paper 2021
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Het afgelopen decennium verwierf Solliance globale faam met haar onderzoek naar de volgende generatie dunnefi lmzonnecellen. Daarin is een belangrijk kruispunt bereikt. ‘We zijn leider in de ontwikkeling van de celtechnologie van de toekomst in combinatie met fabricage van halffabricaten in een roll-to-rollproces’, aldus directeur Ronn...
article 2021
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Molkenboer, F.T. (author), Jansen, R. (author), van Werkhoven, W.P. (author), Mulckhuyse, W.F.W. (author), van Schreven, E.L.C. (author), de Roode, B.J.M. (author), Haasnoot, H.J. (author), Abutan, A. (author), van der Valk, N.C.J. (author), Luijkx, T.S. (author)
public lecture 2021
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Theelen, M.J. (author), Hagedoorn, C. (author), Götz-Köhler, M. (author), Weeber, A. (author), Neugebohn, N. (author)
Oxide/metal/oxide (OMO) layer stacks are promising replacements for conventional transparent conductive oxides in thin-film photovoltaics. They can provide colouration of the solar cells by adjusting their thickness to optimised optical resonances. Green OMO multistacks were deposited on glass by subsequent sputtering of aluminium doped zinc...
article 2021
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Linden, R.J.P. (author), Octaviano, R. (author), Blokland, H. (author), Busking, T.E. (author)
Reliable energy supply becomes increasingly complex in hybrid energy networks, due to increasing amounts of renewable electricity and more dynamic demand. Accurate modeling of integrated electricity and gas distribution networks is required to quantify operational bottlenecks in these networks and to increase security of supply. In this paper,...
article 2021
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Emmelkamp, J. (author)
public lecture 2021
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Stephan, U. (author), Steinke, O. (author), Ushakov, A. (author), Verlaan, A.L. (author), de Bock, M. (author), Moser, L. (author), Maniscalco, M.P. (author), van Beekum, E.R.J. (author), Verhoeff, P. (author)
The Visible Spectroscopy Reference System (55.E6.VSRS) is going to be one of the first optical diagnostic systems in the ITER tokamak chamber, for which plasma cleaning system of front-end optics has to be implemented. In order to extract light out of the fusion plasma towards diagnostic sensor systems, a set of optics forming a labyrinth will...
article 2021
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Cani, D. (author), van der Waal, J.C. (author), Pescarmona, P.P. (author)
A series of photocatalysts consisting of C- and N-doped titanium dioxide (TiO2) nanoparticles highly dispersed and firmly embedded at the surface of a silica matrix were prepared using a novel synthesis method in which activated carbon has a double role: it acts as support for depositing the TiO2 nanoparticles and as hard template for generating...
article 2021
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