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Petrov, K.V. (author)As a response to climate change, substantial efforts are being made to achieve global net-zero greenhouse gas emissions by the year of 2050, as established by the Paris agreement. To decrease reliance on fossil fuels, we are transitioning to renewable energies and electrifying various sectors. However, certain segments of the global supply chain...doctoral thesis 2024
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Eringfeld, Olav (author)Renewable energy sources, such as thin-film silicon solar cells, show a lot of potential as the technology promises low production temperatures, low cost and low material usage. Other benefits are the flexible and very lightweight modules that can be fabricated, which enable a wide variety of applications. Other benefits include the low...master thesis 2024
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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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Kadir, Sezen (author)Quantum computing has gained a lot of interest from researchers and industry due to its great potential to solve some complex problems in various fields. One of the biggest challenges is developing hardware suitable for the extremely low operation temperatures required by quantum computers. Specifically, the wiring material of a quantum computer...master thesis 2023
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Sluijs, Peer (author)Thin-film amorphous Silicon (a-Si) technology has been up and coming in recent years in order to achieve an efficiency comparable to crystalline Silicon (c-Si). Although the technology has existed for quite some time, it has not been researched as much as its crystalline counterpart, especially not in the hotspot reliability sector. The hotspot...master thesis 2023
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Ghayeni, Seyed Mehdi (author)Thin-film silicon solar cells are an innovative approach to utilizing solar energy. Thanks to their flexibility, lower material usage, and production cost, they have the potential to be used in a range of applications. The conversion efficiencies of thin-film silicon solar cells need to be improved to make them commercially viable. This involves...master thesis 2023
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Muthaiyan Karthikeyen, Shriram (author)Thin-film silicon photovoltaic (PV) technology has an enormous potential in the solar power market due to its light weight, flexibility and ease of integration. This enables it to have a wide range of applications like roof top and building integrated installations making it more sustainable. Some of the other key benefits of thin-film silicon...master thesis 2023
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Dhavle, Shloka Atul (author)Thin film silicon solar cells are a type of photovoltaic technology with the advantage of having thin layers of silicon to generate electricity. Unlike traditional crystalline silicon solar cells, which use thick silicon wafers, thin-film silicon solar cells use amorphous silicon that can be made with much thinner layers of silicon. This allows...master thesis 2023
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Mishra, Shantiswaroop (author)This report emphasizes the importance of implementing quality control methods in the production machines at HyET Solar for assessing the quality of deposited materials. The focus is on two key steps: the deposition of the front transparent conductive oxide (TCO) layer and the deposition of silicon layers. Models were developed to characterize...master thesis 2023
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Bleeker, Julian (author)The research objective of this research is to develop a measurement method that can measure thin film thicknesses through a multilayer that consists of both surrounding thick layers and in between thin films. An optical non-contact measurement method is researched and developed to non-destructively measure the thickness of a liquid thin film,...master thesis 2023
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Criel, Matthias (author)Thin-film silicon technology creates electricity out of micrometer thick silicon absorber layers, which makes this technology less material heavy compared to classic crystalline technology. This advantage can be further exploited with the transition towards flexible thin-film technology, where the non-modular cost can be further reduced compared...master thesis 2023
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Hendrix, Lorena (author)To make silicon thin film solar cells attractive to the market, their efficiencies should reach the efficiencies of the dominant crystalline silicon solar cell. Therefore the search for ways to improve the efficiency of silicon thin film solar cells continues. TCO front contact layers and back reflector layers play a significant role in the...master thesis 2023
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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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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