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Bruschke, Alexander (author)
master thesis 2024
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Zhu, Michael (author)
An increasing penetration of renewable energy sources in the global energy market necessitates an increasing amount of energy storage. Batteries are an excellent source of short term storage, used in vehicles, home storage and mobile applications. However modern technologies such as Li-ion batteries face resource scarcity and hence introduce...
master thesis 2023
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Coerkamp, Rutger (author)
The mass production of lithium-ion batteries used in, for instance, electric vehicles led to significant cost reductions. However, concerns are emerging about the availability of resources and the environmental impact of the production. Metal-air batteries use more resource-efficient materials and potentially have higher energy densities than...
master thesis 2022
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van Grootel, Raimon (author)
Renewable energy sources such as solar and wind energy rely on climate­ and weather conditions, like sun irradiation in the case of solar energy, and wind speed in the case of wind energy. These change throughout the day and with the seasons. There are periods of little wind, and during the night there is no sunlight. During periods of no...
master thesis 2021
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Ammerlaan, Tim (author)
Lithium-ion batteries are currently most commonly used in most electronic devices. These batteries are used because of their superiority in gravimetric energy and cyclability compared to other battery technologies. The most common anode used in lithium-ion batteries is currently graphite. Graphite has proven to be a very stable cycling material....
master thesis 2021
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Gani, Siri (author)
Energy storage is a critical component in decreasing the unpredictability of<br/>renewable energy. Silicon-air battery is a type of storage technology that potentially has a higher energy density than lithium-ion battery. The silicon-air<br/>battery, on the other hand, must overcome corrosion and passivation reactions in order to discharge...
master thesis 2021
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Jacob, Nithin (author)
Renewable energy sources (RES) such as Solar and Wind energy rely on the availability of natural resources like sunlight in the case of Solar and wind speed in the case of Wind energy generation which is variable in nature. There are periods where there is excess energy production than needed and periods of energy shortage where not enough...
master thesis 2020
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Wang, Shihao (author)
In recent years, the world has witnessed a dramatic advancement in sustainable energy development. Due to the inconsistent supply of such energy, a more efficient energy storage method is in need. Among many options, lithium-ion battery stands out due to its lightweight, high energy density, and high discharge potential. Currently, the most...
master thesis 2020
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Prins, Jasper (author)
The objective of this research is to evaluate the effect the air electrode has on the discharge performance of an alkaline silicon-air battery. Experiments are conducted to show that alkaline pre-treatment of the air electrode of up to eight hours leads to an increase in both discharge time and discharge potential of the battery. Furthermore, it...
master thesis 2020
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Kothandaraman, Radha Krishnan (author)
Single junction solar cells suffer from two primary loss mechanisms due to spectral mismatch: thermalisation and non-absorption losses. A photon with energy greater than the bandgap of the solar cell can be absorbed to excite an electron-hole pair and the excess energy received is released as heat constituting thermalisation losses. On the other...
master thesis 2018
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Raman, Venkateswaran (author)
In this thesis, graded bandgap energy a-SiO<sub>x</sub>:H solar cells are developed to attain a high JSC without compromising their high <i>V<sub>OC</sub> </i>× FF product. First, a grading method which takes into account the interdependence of bandgap energy, deposition rate and the desired grading profile for a-SiO<sub>x</sub>:H materials is...
master thesis 2018
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RODRIGUEZ LUNA, Rogelio (author)
Solar cells are showing significant promise to become the solution for the growing energy needs of our world. However for this to happen, new disruptive technologies with high efficiency and low cost are needed in the market. One possibility comes from multijunction thin film solar cells based on a-Si alloys and nc-Si. For this purpose a–SiO<sub...
master thesis 2017
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Chaudhary, Aditya (author)
A tremendous amount of research in improving the efficiency of the single junction crystalline silicon (c-Si) based solar cells has brought its efficiency (26.6%) close to the theoretical maximum achievable conversion<br/>efficiency (29.43%) [1–3]. Thus to further improve the efficiency, new avenues of reducing losses need to be opened up. One...
master thesis 2017
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van Schie, R.S. (author)
The aim of this study is to analyse the individual cells of a micromorph tandem solar cell by dark current-voltage characteristics and to study the e ffect of temperature on the individual subcells of the device, being amorphous silicon and microcrystalline silicon. Special focus is placed on studying the temperature-dependent voltage...
master thesis 2016
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Quik, J. (author)
Silicon nanoparticles (NPs) embedded in a dielectric matrix, such as silicon oxide, pose a promising candidate for all-silicon multi-junction solar cells. This material is often analysed with photoluminescence (PL) measurements. In literature, the intensities of different PL measurements are either directly compared or normalized. Normalization...
master thesis 2016
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Papakonstantinou, G. (author)
For a prolonged period, the photovoltaic industry has been on the brink of transition towards improving the performance and reducing the manufacturing costs of solar cells. In this view, hydrogenated amorphous/crystalline silicon (a-Si:H/c-Si) heterojunction (SHJ) solar cells have gained considerable attention, by bridging the benefits of c-Si...
master thesis 2014
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Alivizatos, S. (author)
The hydrogenated amorphous/crystalline silicon (a-Si:H/c-Si) heterojunction (SHJ) solar cell is considered a great competitor of the most commercialized homojunction c-Si solar cells while it combines the high performance and the low cost potential of c-Si and a-Si technologies, respectively. Furthermore, the implementation of thin intrinsic (i)...
master thesis 2013
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Digdaya, I.A. (author)
master thesis 2012
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Meerwijk, J.C. (author)
Heterojunction with intrinsic thin-film (HIT) solar cells combine the strengths of amorphous and crystalline silicon to create very efficient and stable devices. In fact, they have the potential to replace solar cells based on monocrystalline technology; the current solar cell market leader. The production can be done cheaper, at lower...
master thesis 2012
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Oyediran, D.O. (author)
The plasma-enhanced chemical vapour deposition (PECVD) method is widely used compared to other methods to deposit µc-Si:H because of the high potential to prepare high quality material uniformily on a large area substrate at low temperature. This method was used to grow µc-Si:H p- and i-layers. The effect of p– layer deposition parameters on the...
master thesis 2009
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