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Yu, Kunlei (author)This thesis addresses the design and optimization of sparse non-uniform optical phased arrays (OPAs) for advanced automotive LiDAR systems. As autonomous driving technologies advance, the demand for high-resolution, reliable, and compact LiDAR systems has become increasingly critical. Traditional uniform OPAs, while effective, face limitations...master thesis 2024
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Muthusubramanian, N. (author), Finkel, M. (author), Duivestein, W.J. (author), Zachariadis, C. (author), van der Meer, S.L.M. (author), Veen, H.M. (author), Beekman, M.C. (author), Stavenga, T. (author), Bruno, A. (author), DiCarlo, L. (author)We investigate die-level and wafer-scale uniformity of Dolan-bridge and bridgeless Manhattan-style Josephson junctions, using multiple substrates with and without through-silicon vias (TSVs). Dolan junctions fabricated on planar substrates have the highest yield and lowest room-temperature conductance spread, equivalent to ∼ 100 M H z in...journal article 2024
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Jan, A. (author), Chen, M. (author), Nijboer, Michiel (author), Luiten-Olieman, Mieke W.J. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)Sodium hypochlorite (NaClO) is widely used for the chemical cleaning of fouled ultrafiltration (UF) membranes. Various studies performed on polymeric membranes demonstrate that long-term (>100 h) exposure to NaClO deteriorates the physicochemical properties of the membranes, leading to reduced performance and service life. However, the effect...journal article 2024
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van Nijen, D.A. (author), Stevens, Tristan (author), Mercimek, Yavuzhan (author), Yang, G. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author), Isabella, O. (author), Manganiello, P. (author)Nowadays, an increasing share of photovoltaic (PV) systems makes use of module- or submodule-level power electronics (PE). Furthermore, PE is used in stand-alone devices powered by PV-storage solutions. One way to facilitate further implementation of PE in PV applications is to integrate PE components into crystalline silicon PV cells. Herein...journal article 2024
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Li, J. (author), Vollebregt, S. (author), Zhang, Y. (author), Shekhar, A. (author), May, Alexander (author), van Driel, W.D. (author), Zhang, Kouchi (author)Due to the deficient passivation of the interface between silicon carbide and silicon dioxide, the defect-induced capture and release of trapped charges triggered by external Bias Temperature Stress (BTS) leads to parameter shifts and degraded device performance. This study models the trap-induced transient current in silicon carbide metal-oxide...conference paper 2024
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Kovačević, K. (author), Zhao, Y. (author), Procel Moya, P.A. (author), Cao, L. (author), Mazzarella, L. (author), Isabella, O. (author)The fabrication process of interdigitated-back-contacted silicon heterojunction (IBC-SHJ) solar cells has been significantly simplified with the development of the so-called tunnel-IBC architecture. This architecture utilizes a highly conductive (p)-type nanocrystalline silicon (nc-Si:H) layer deposited over the full substrate area comprising...journal article 2024
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Zhou, Hanxiao (author)Large amounts of oily wastewater which included oil-in-water (O/W) emulsions, also known as produced water (PW), were produced in tandem with the enhanced oil recovery (EOR). Ultrafiltration (UF) was an effective and economic method to separate micron-sized O/W emulsions, while the membrane fouling limited its development. Understanding the...master thesis 2023
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Muntenaar, Laura (author)Demand for smart, Internet-connected devices and other electronics has increased dramatically in recent years. This increase in demand for technological devices, driven by advancements in Artificial Intelligence (AI), the Internet of Things (IoT), and autonomous systems, has exposed the digital system to potential security threats. As more...master thesis 2023
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Arora, S. (author)The aimof this thesis is to investigate the impact of symmetry on light and how it alters its characteristics. Our research centers around the examination of complex photonic crystals rooted in the concept of photonic topological insulators, which are analogs of topological insulators initially introduced in condensed matter physics. Unlike...doctoral thesis 2023
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Lingmont, Roald (author)In order to scale the planar flow casting (PFC) process to industrial levels a Python model is created. The model which is based on a combination of empirical and theoretical equations, is used to explore the limits of the process. The model is independently verified with a Comsol simulation, which is extended with solidification and heat...master thesis 2023
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den Blanken, Douwe (author)The growing interest in edge computing is driving the demand for more efficient deep learning models that fit into resource-constrained edge devices like Internet-of-Things (IoT) sensors. The challenging limitations of these devices in terms of size and power has given rise to the field of tinyML, focusing on enabling low-cost machine learning...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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De Boeck, Jan (author)In the context of prosthetic devices, the absence of natural sensory feedback poses a significant challenge, leading to limited proprioceptive sensation and reduced control over artificial limbs. This study explores the potential of establishing a magnetic connection between prosthetic devices and muscles to enhance proprioceptive feedback and...master thesis 2023
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Chen, N. (author)The issue of climate change, including global warming, poses a significant challenge to our planet. In response to this challenge, the Paris Agreement was signed, which aims to limit the rise in global temperatures to well below 2 <sup style="--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw...doctoral thesis 2023
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Zheng, Yi (author)Silicon heterojunction (SHJ) solar cell technology is one of the most promising PV technologies because of its high power conversion efficiencies, simple fabrication process and low manufacturing cost. The current world record efficiency of SHJ solar cell reaches up to 26.81%. SHJ solar cell produces the highest VOC over 750 mV among the c-Si...master thesis 2023
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Scheepstra, Jasper (author)In a world increasingly dominated by technological advancements, the demand for high-quality microphones has never been more present. Seamless speech recognition and the development of userfriendly hearing aids remain significant challenges. State-of-the-art micro-electromechanical system (MEMS) microphones are reaching their bottlenecks in...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