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Han, C. (author), Zhao, Y. (author), Mazzarella, L. (author), Santbergen, R. (author), Bento Montes, A.R. (author), Procel Moya, P.A. (author), Yang, G. (author), Zhang, Xiaodan (author), Zeman, M. (author), Isabella, O. (author)The window layers limit the performance of silicon heterojunction (SHJ) solar cells with front and back contacts. Here, we optimized tungsten-doped indium oxide (IWO) film deposited by radio frequency magnetron sputtering at room temperature. The opto-electrical properties of the IWO were manipulated when deposited on top of thin-film silicon...journal article 2021
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Ebrahimi, Amin (author), Kleijn, C.R. (author), Richardson, I.M. (author)Development, optimisation and qualification of welding and additive manufacturing procedures to date have largely been undertaken on an experimental trial and error basis, which imposes significant costs. Numerical simulations are acknowledged as a promising alternative to experiments, and can improve the understanding of the complex process...journal article 2021
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welschen, romy (author)In the framework of the High Luminosity LHC project at CERN, the need for further incorporation of evaluation of radiation damage into the design of beam intercepting devices at CERN is described and the risks of radiation damage in high energy applications are summarized. Radiation damage can be an important topic in high energy applications...master thesis 2019
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Hagedoorn, P.L. (author)The tungsten containing Aldehyde:ferredoxin oxidoreductases (AOR) offer interesting opportunities for biocatalytic approaches towards aldehyde oxidation and carboxylic acid reduction. The hyperthermophilic archaeon Pyrococcus furiosus encodes five different AOR family members: glyceraldehyde-3-phosphate oxidoreductase (GAPOR), aldehyde...journal article 2019
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Xiao, Ping (author), Buijnsters, J.G. (author), Zhao, Yanxi (author), Yu, Huan (author), Xu, Xuelian (author), Zhu, Yujun (author), Tang, Duihai (author), Zhu, Junjiang (author), Zhao, Zhen (author)Hydrogen is the most desirable green energy carrier and electrocatalytic hydrogen evolution reaction (HER) from water is a promising route for hydrogen production. The search for efficient, low-cost HER catalysts is a challenging and attracting topic. In this work, we report that inorganic fullerene-like WS<sub>2</sub> supported Pd...journal article 2019
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Manca, N. (author), Mattoni, G. (author), Pelassa, Marco (author), Venstra, W.J. (author), van der Zant, H.S.J. (author), Caviglia, A. (author)Strain engineering is one of the most effective approaches to manipulate the physical state of materials, control their electronic properties, and enable crucial functionalities. Because of their rich phase diagrams arising from competing ground states, quantum materials are an ideal playground for on-demand material control and can be used...journal article 2019
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Jia, Jinhao (author), Bai, Shuxin (author), Xiong, Degan (author), Wang, Jie (author), Chang, J. (author)Tungsten coatings were deposited on diamond particles by vacuum magnetron sputtering. The coated diamond particles were firstly heat treated at different temperatures, and diamond/copper (Cu) composites were fabricated by using a pressureless infiltration method afterwards. The influences of heat treatment on the microstructure and...journal article 2019
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Rosas Saad, Jorge A (author)Because of its extraordinary material properties, like its high melting point and thermal stress resistance, low erosion and swelling rate, and high radiation damage resistance, highly deformed pure tungsten has been chosen as the plasma facing surface material for the ITER reactor divertor. The study of tungsten’s recrystallization behavior and...master thesis 2018
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Ten Dam, J. (author), Djanashvili, K. (author), Kapteijn, F. (author), Hanefeld, U. (author)Screening of four commercial catalysts (Pt/Al2O3, Pt/SiO2, Pd/Al2O3, and Pd/SiO2) and four acidic additives (hydrochloric, tungstic, phosphotungstic, and silicotungstic acids) shows that the combination of a platinum hydrogenation catalyst with tungsten containing acidic additives yields 1,3-propanediol from aqueous glycerol. The performance of...journal article 2012
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Koerselman, J.R. (author)A design methodology for composite space enclosures was generated. As a result a panel of an electronics housing structure, as part of a general satellite traversing both GEO and LEO, was designed and optimized. A mass saving of 18% was achieved over a conventional aluminum panel, while assuring structural integrity for acceleration loads,...master thesis 2012
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Post, P.C. (author), Mohammadi-Gheidari, A. (author), Hagen, C.W. (author), Kruit, P. (author)Lithography techniques based on electron-beam-induced processes are inherently slow compared to light lithography techniques. The authors demonstrate here that the throughput can be enhanced by a factor of 196 by using a scanning electron microscope equipped with a multibeam electron source. Using electron-beam induced deposition with MeCpPtMe3...journal article 2011
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Bronsgeest, M.S. (author), Kruit, P. (author)The Schottky electron source is predominant in today’s focused electron-beam equipment, but its properties are still not fully understood. Generally, its performance is predicted, assuming its tip end geometry is known and stable. In this work, it is shown that the size of the end facet (slowly) shrinks upon reduction in the extraction voltage...journal article 2009
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Hollenstein, K. (author), Comellas-Bigler, M. (author), Bevers, L.E. (author), Feiters, M.C. (author), Meyer-Klaucke, W. (author), Hagedoorn, P.L. (author), Locher, K.P. (author)Bacteria and archaea import molybdenum and tungsten from the environment in the form of the oxyanions molybdate (MoO4 2?) and tungstate (WO4 2?). These substrates are captured by an external, high-affinity binding protein, and delivered to ATP binding cassette transporters, which move them across the cell membrane. We have recently reported a...journal article 2009
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Pujada, B.R. (author), Tichelaar, F.D. (author), Arnoldbik, W.M. (author), Sloof, W.G. (author), Janssen, G.C.A.M. (author)Growth stress in tungsten carbide-diamond-like carbon coatings, sputter deposited in a reactive argon/acetylene plasma, has been studied as a function of the acetylene partial pressure. Stress and microstructure have been investigated by wafer curvature and transmission electron microscopy (TEM) whereas composition and energy distribution...journal article 2009
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Dokania, A.K. (author), Hendrikx, R. (author), Kruit, P. (author)The electron sources in electron microscopes and electron lithography machines often consist of small diameter W(100) wires, etched to form a sharp tip. The electron emission is facilitated by the Schottky effect, thus the name Schottky emitter. The authors are investigating the feasibility of arrays of such electron emitters for the use in...journal article 2009
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Bronsgeest, M.S. (author), Kruit, P. (author)The stability of the physical shape of an electron emitter (co)determines the stability of the performance of electron-beam equipment. A typical short-term instability of the Schottky electron source is the instability of the (100) facet at the tip end known as “collapsing rings.” This instability causes probe instabilities, but it is known from...journal article 2008
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Bevers, L.E. (author)Tungsten is the heaviest element that exhibits biological activity (atomic number 74), when it is present in an enzyme. It is taken up by cells in the form of tungstate, and it is subsequently processed into an organic cofactor referred to as tungstopterin, which is found as active center in several enzymes. Pyrococcus furiosus is a...doctoral thesis 2008
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Bol, E. (author), Broers, N.J. (author), Hagen, W.R. (author)Formaldehyde ferredoxin oxidoreductase from Pyrococcus furiosus is a homotetrameric protein with one tungstodipterin and one [4Fe–4S] cubane per 69-kDa subunit. The enzyme kinetics have been studied under steady-state conditions at 80 °C and pre-steady state conditions at 50 °C, in the latter case via monitoring of the relatively weak (? ? 2 mM...journal article 2007
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Bol, E. (author), Broers, N.J. (author), Hagen, W.R. (author)Formaldehyde ferredoxin oxidoreductase from Pyrococcus furiosus is a homotetrameric protein with onetungstodipterin and one [4Fe–4S] cubane per 69-kDa subunit. The enzyme kinetics have been studied understeady-state conditions at 80 C and pre-steady state conditions at 50 C, in the latter case via monitoring of the relatively weak (e ~ 2 mM–1 cm...journal article 2007
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Pujada, B.R. (author), Tichelaar, F.D. (author), Janssen, G.C.A.M. (author)Tungsten carbide-diamond like carbon (WC-DLC) multilayer coatings have been prepared by sputter deposition from a tungsten-carbide target and periodic switching on and off of the reactive acetylene gas flow. The stress in the resulting WC-DLC multilayers has been studied by substrate curvature. Periodicity and microstructure have been studied by...journal article 2007
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