Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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Xie, L (author), Jarolímek, K. (author), Kocevski, V. (author), Rusz, J. (author), Zeman, M. (author), van Swaaij, R.A.C.M.M. (author), Leifer, K (author)
The optical and electrical properties of Si rich SiC (SRSC) solar cell absorber layers will strongly depend on interfacial layers between the Si and the SiC matrix and in this work, we analyze hitherto undiscovered interfacial layers. The SRSC thin films were deposited using a plasma-enhanced chemical vapor deposition (PECVD) technique and...
journal article 2017
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Prabu Harsarapama, A. (author)
As the number of large scale photovoltaic power plants (which also known as solar parks) is growing in recent years, standard activities related to the system such as the operation and maintenance of the plant and grid management have become more crucial. In order to ensure a standard quality of these activities, accurate irradiance measurement...
master thesis 2017
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Vlasman, I. (author)
As the state of the environment deteriorates due to the large energy consumption in the world, the importance of green technologies like photovoltaic (PV) generators and electric vehicles (EVs) increases. Both are making their appearance as common technologies in the modern life. However, separately these technologies can have bad influences on...
master thesis 2017
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Hofgärtner, A. (author)
The building sector accounts for 30% of the total energy consumption worldwide, which has a large potential for improvement in energy demand (OECD/IEA, 2015). In the Netherlands a large part of the building stock are existing houses and that eventually need to be transformed to become energy neutral. The scale of the neighbourhood makes it...
master thesis 2017
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Mostert, E. (author)
Electrical trains are fed with a high voltage to reduce transmission losses. In the train, these voltages have to be stepped down to a voltage that could be fed into the traction motors. This is done with IGBT based power converters. The use of IGBTs in power converters has some disadvantages: they generate a lot of heat and are therefore not...
master thesis 2017
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Santbergen, R. (author), Meguro, Tomomi (author), Suezaki, Takashi (author), Koizumi, Gensuke (author), Yamamoto, Kenji (author), Zeman, M. (author)
We present a new version of our optical model for solar cell simulation: GenPro4. Its working principles are briefly explained. The model is suitable for quickly and accurately simulating a wide range of wafer-based and thin-film solar cells. Especially adjusting layer thicknesses to match the currents in multijunction devices can be done...
journal article 2017
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Melskens, J. (author), Eijt, S.W.H. (author), Schouten, M. (author), Vullers, A.S. (author), Mannheim, Awital (author), Schut, H. (author), Macco, Bart (author), Zeman, M. (author), Smets, A.H.M. (author)
The nanostructure of hydrogenated amorphous silicon (a-Si:H) is studied by means of doppler broadening positron annihilation spectroscopy (DB-PAS) and Fourier transform infrared (FTIR) spectroscopy. The evolution of open volume deficiencies is monitored during annealing, demonstrating that small vacancies and other small vacancy clusters that...
journal article 2017
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van de Loo, B.W.H. (author), Ingenito, A. (author), Verheijen, M.P.A.M. (author), Isabella, O. (author), Zeman, M. (author)
Black silicon (b-Si) nanotextures can significantly enhance the light absorption of crystalline silicon solar cells. Nevertheless, for a successful application of b-Si textures in industrially relevant solar cell architectures, it is imperative that charge-carrier recombination at particularly highly n-type doped black Si surfaces is further...
journal article 2017
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Vismara, R. (author), Isabella, O. (author), Zeman, M. (author)
for photovoltaic applications. Then, the proposed back...
journal article 2017
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Si, F.T. (author), Isabella, O. (author), Zeman, M. (author)
Mixed-phase hydrogenated silicon oxide (SiOx:H) is applied to thin-film hydrogenated amorphous silicon germanium (a-SiGe:H) solar cells serving as both p-doped and n-doped layers. The bandgap of p-SiOx:H is adjusted to achieve a highly-transparent window layer while also providing a strong electric field. Bandgap grading of n-SiOx:H is designed...
journal article 2017
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Vasudevan, R.A. (author), Poli, Isabella (author), Deligiannis, D. (author), Zeman, M. (author), Smets, A.H.M. (author)
Light-induced effects on the minority carrier lifetime of silicon heterojunction structures are studied through multiple-exposure photoconductance decay (MEPCD). MEPCD monitors the effect of the measurement flash from a photoconductance decay setup on a sample over thousands of measurements. Varying the microstructure of the intrinsic...
journal article 2016
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Berendsen, Ph. (author)
master thesis 2016
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Feenstra, T. (author)
One potential problem associated with the high electrical frequency in high-speed electrical machines are additional iron losses near the end-windings. They are expected to be a significant part of the total iron loss. The reader is introduced to currently known methods to study high-frequency iron loss estimation and end-effects in laminated...
master thesis 2016
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Pieper, J.T. (author)
A meshed North Sea offshore electricity grid with high renewable energy penetration, as envisioned by the European Commission, is still at its infancy. Currently, point-to-point high-voltage DC interconnections across borders are already being implemented successfully, but the next steps of expanding these interconnectors with additional...
master thesis 2016
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Yang, G. (author), Ingenito, A. (author), Isabella, O. (author), Zeman, M. (author)
Ion-implanted poly-crystalline silicon (poly-Si), in combination with a tunnel oxide layer, is investigated as a carrier-selective passivating contact in c-Si solar cells based on an interdigitated back contact (IBC) architecture. The optimized poly-Si passivating contacts enable low interface recombination, resulting in implied VOC (iVOC) of...
journal article 2016
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Falkenberg, M. (author)
Despite the fact that renewable energy sources are on the march, our energy system is still dominated by fossil fuels. In this energy transition storage is one of the main bottlenecks and attracts a lot of research. In order to compensate for the intermittent character of renewable sources like solar energy, the most developed options in the...
master thesis 2016
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Yeo, J.W.W. (author)
Oil-filled terminations for high voltage XLPE insulated cables have been used for four decades in the Netherlands with a good service record. Prysmian would like to gain better insight into the effects of water contamination in insulating oil, to further extend the in-house experience and potential related failure mechanisms. High voltage...
master thesis 2016
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Tsakonas, P. (author)
The recent developments in the offshore wind industry are pushing towards upgrading the inter-array voltage level from 33 kV to 66 kV. The main reason behind this, is the increased capacity of future wind turbines leading to an increased power density in the inter-array grid of the offshore wind farms. The current level of 33 kV cannot give cost...
master thesis 2016
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Perez Rodriguez, P. (author), Digdaya, I.A. (author), Mangel Raventos, A. (author), Falkenberg, M. (author), Vasudevan, R.A. (author), Zeman, M. (author), Smith, W.A. (author), Smets, A.H.M. (author)
One of the main problems of renewable energies is storage of the energy carrier. For long-term storage, solar fuels seem to be a good option. Direct solar water splitting could play an important role in the production of these solar fuels. One of the main challenges of this process is the charge separation and collection at the interfaces. The...
conference paper 2016
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Naeinian, B. (author)
master thesis 2016
Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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