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Bannenberg, L.J. (author), Verhoeff, D. (author), Jonckers Newton, Nick (author), Thijs, M.A. (author), Schreuders, H. (author)Here, we study the structural and optical properties of tetragonal β-tantalum-sputtered thin films both ex situ and when exposed to hydrogen, with a focus on optical hydrogen sensing applications. Using optical transmission measurements, out-of-plane and in-plane X-ray diffraction, and X-ray and neutron reflectometry, we show that thin film β...journal article 2024
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Derksen, M. (author), Bizinoto Ferreira Bosco, G. (author), Muller, Timo (author), van der Kolk, E. (author)The characterization of a wide range of luminescent thin films can be a long and tedious endeavor. With reactive combinatorial sputtering of multiple metal targets, it possible to fabricate thin films with a gradient in composition simply by not rotating the substrate. In this work, combinatorically sputtered thin films of Cr<sup>3+</sup> and...journal article 2024
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Belaid, Walid (author), Gezgin, Serap Yiğit (author), Basyooni, Mohamed A. (author), Eker, Yasin Ramazan (author), Kılıç, Hamdi Şükür (author)UV sensors hold significant promise for various applications in both military and civilian domains. However, achieving exceptional detectivity, responsivity, and rapid rise/decay times remains a notable challenge. In this study, we address this challenge by investigating the photodetection properties of CdS thin films and the influence of...journal article 2024
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Sauerbrey, M. (author)We construct solutions to the stochastic thin-film equation with quadratic mobility and Stratonovich gradient noise in the physically relevant dimension d = 2 and allow in particular for solutions with non-full support. The construction relies on a Trotter–Kato time-splitting scheme, which was recently employed in d = 1. The additional...journal article 2024
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Basyooni, Mohamed A. (author), Zaki, Shrouk E. (author), Rahmani, Khalid (author), En-nadir, Redouane (author), Eker, Yasin Ramazan (author)Surface plasmon technology is regarded as having significant potential for the enhancement of the performance of 2D oxide semiconductors, especially in terms of improving the light absorption of 2D MoO3 photodetectors. An ultrathin MoO3/Ir/SiO2/Si heterojunction Schottky self-powered photodetector is introduced here to showcase positive...journal article 2023
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Swamy, G. Venkat (author), Rout, P.K. (author), Pandey, Himanshu (author), Riscob, B. (author), Basheed, G. A. (author)We report the magnetic domain structure, and electrical and magnetoresistance properties of laser ablated Co<sub>40</sub>Fe<sub>40</sub>B<sub>20</sub> (CoFeB) (6 to 36 nm) thin films deposited on SiO<sub>2</sub> / Si(001) substrates. Magnetic force microscopy performed on annealed CoFeB thin films revealed larger magnetic domains, which are...journal article 2023
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Quan, D. (author), Wang, Guilong (author), Zhao, Guoqun (author), Alderliesten, R.C. (author)The exceptional mechanical properties of Polyether-ether-ketone(PEEK) polymers make them ideal candidates for interlayer toughening of carbon fibre/epoxy composites. Herein, ultra-thin PEEK films with a thickness of 8μm, 18μm and 25μm were used for interlayer toughening of an aerospace-grade carbon fibre/epoxy composite. The mode-I and mode...journal article 2023
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Bannenberg, L.J. (author), Schreuders, H. (author), van Beugen, N. (author), Kinane, Christy (author), Hall, Stephen (author), Dam, B. (author)Accurate, cost-efficient, and safe hydrogen sensors will play a key role in the future hydrogen economy. Optical hydrogen sensors based on metal hydrides are attractive owing to their small size and costs and the fact that they are intrinsically safe. These sensors rely on suitable sensing materials, of which the optical properties change...journal article 2023
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Rad, Adeleh Granmayeh (author), Abbasi, H. (author)Silver oxide (AgO) thin films were prepared by using a cylindrical direct current reactive magnetron sputtering system at 10<sup>−5</sup> torr initial pressure on BK7 glass substrate. Samples deposited for 3, 5 and 7 minutes. Surface characterization of AgO thin films in the nanometer scale can be accurately determined using the atomic force...journal article 2023
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Zhang, Y. (author), Mo, J. (author), Cui, Z. (author), Vollebregt, S. (author), Zhang, Kouchi (author)The continuous downscaling of microelectronics has introduced many reliability issues on interconnect. Electromigration and dewetting are major reliability concerns in high-temperature micro- and nanoscale devices. In this paper, the local dewetting of copper thin film during the electromigration test was first found and investigated. When...conference paper 2023
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Giacomelli, Lorenzo (author), Gnann, M.V. (author), Peschka, Dirk (author)We consider the thin-film equation for a class of free boundary conditions modelling friction at the contact line, as introduced by E and Ren. Our analysis focuses on formal long-time asymptotics of solutions in the perfect wetting regime. In particular, through the analysis of quasi-self-similar solutions, we characterize the profile and the...journal article 2023
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Radmanesh, F. (author), Tena, A. (author), Sudhölter, Ernst J. R. (author), Benes, N. E. (author)Highly selective thin-film composite membranes for hot hydrogen sieving are prepared via the pyrolysis of thin cyclomatric polyphenoxy phosphazene films that are prepared via a non-conventional interfacial polymerization of hexachlorocyclotriphosphazene with 1,3,5-trihydroxybenzene or m-dihydroxybenzene. The presence of the cyclic phosphazene...journal article 2023
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Chaykina, D. (author)Rare-earth metal oxyhydride thin films show a photochromic effect, where their transparency decreases (reversibly) with exposure to light with energy greater than its optical band gap. The precise underlying mechanism behind this effect is unknown, but is investigated in this thesis by using techniques such as muon spin relaxation, or materials...doctoral thesis 2022
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The Development and Stability of Palladium-based Thin Films for Hydrogen-related Energy ApplicationsVerma, N. (author)Hydrogen has been contemplated as a desirable energy source of the future with enormous possibilities to create a carbon-neutral society. Since palladium (Pd) readily absorbs hydrogen even at low pressure and room temperature, Pd and its alloys are suitable for hydrogen production, purification, storage, gas sensors, and fuel cell catalyst....doctoral thesis 2022
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Pak, A. (author), Nanbakhsh, K. (author), Hölck, Ole (author), Ritasalo, Riina (author), Sousa, Maria (author), Van Gompel, Matthias (author), Pahl, Barbara (author), Wilson, J.M. (author), Kallmayer, Christine (author), Giagka, Vasiliki (author)Liquid crystal polymer (LCP) has gained wide interest in the electronics industry largely due to its flexibility, stable insulation and dielectric properties and chip integration capabilities. Recently, LCP has also been investigated as a biocompatible substrate for the fabrication of multielectrode arrays. Realizing a fully implantable LCP...journal article 2022
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Hagendoorn, Y. (author), Pandraud, G. (author), Vollebregt, S. (author), Morana, B. (author), Sarro, Pasqualina M (author), Steeneken, P.G. (author)Since the transfer process of graphene from a dedicated growth substrate to another substrate is prone to induce defects and contamination and can increase costs, there is a large interest in methods for growing graphene directly on silicon wafers. Here, we demonstrate the direct CVD growth of graphene on a SiO2 layer on a silicon wafer by...journal article 2022
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Bakker, N.J. (author), Assen, Suzanne (author), Rasia, Alix (author), Barreau, Nicolas (author), Weeber, A.W. (author), Theelen, Mirjam (author)Partial shading of PV modules can lead to degradation of the shaded cells. The degradation originates from a reverse bias voltage over the shaded cells. In order to mitigate reverse bias damage in Cu(In, Ga)Se2 (CIGS) modules, a good understanding of the fundamental mechanisms governing the reverse characteristic is required. In this study, a...journal article 2022
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de Vrijer, T. (author), van Nijen, D.A. (author), Parasramka, Harsh (author), Procel Moya, P.A. (author), Zhao, Y. (author), Isabella, O. (author), Smets, A.H.M. (author)Two terminal multi-junction (MJ) photovoltaic (PV) devices are well established concepts to increase the solar-to-electrical power conversion in reference to single PV junctions. In multi-junction PV devices two consecutive sub-cells are interconnected using a tunnel recombination junction (TRJ) in which the light excited holes of one sub...journal article 2022
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Bizinoto Ferreira Bosco, G. (author), van den Biesen, J. K. (author), Boers, C. D. (author), Simone, G. (author), Kao, C.C. (author), Tichelaar, F.D. (author), Boshuizen, B. (author), van der Kolk, E. (author)Silicon-aluminum-oxigen (SiAlO) coatings doped with Sm<sup>2+</sup> and prepared by reactive magnetron co-sputtering of Si, Al, and Sm targets, are attractive for luminescence solar concentrator applications but suffer from the low absorption between 300 and 600 nm. This article reports that the main cause of low absorption is a high...journal article 2022
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Bakhit, Babak (author), Dorri, Samira (author), Kosari, A. (author), Mol, J.M.C. (author), Petrov, Ivan (author), Birch, Jens (author), Hultman, Lars (author), Greczynski, Grzegorz (author)We study microstructure, mechanical, and corrosion properties of Zr<sub>1-x</sub>Cr<sub>x</sub>B<sub>y</sub> coatings deposited by hybrid high-power impulse/DC magnetron co-sputtering (CrB<sub>2</sub>-HiPIMS/ZrB<sub>2</sub>-DCMS). Cr/(Zr + Cr) ratio, x, increases from 0.13 to 0.9, while B/(Zr + Cr) ratio, y, decreases from 2.92 to 1.81. As...journal article 2022