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Yang, G. (author), Guo, Peiqing (author), Procel Moya, P.A. (author), Weeber, A.W. (author), Isabella, O. (author), Zeman, M. (author)The poly-Si carrier-selective passivating contacts (CSPCs) parasitically absorb a substantial amount of light, especially in the form of free carrier absorption. To minimize these losses, we developed CSPCs based on oxygen-alloyed poly-Si (poly-SiO<sub>x</sub>) and deployed them in c-Si solar cells. Transmission electron microscopy analysis...journal article 2018
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Faturrochman, G.J. (author), de Jong, M.M. (author), Santbergen, R. (author), Folkerts, W. (author), Zeman, M. (author), Smets, A.H.M. (author)In this work we consider noise barriers with integrated photovoltaic modules. The novelty is that bifacial modules are considered. A full scale bifacial photovoltaic noise barrier was built and its power output was monitored. In addition we developed an advanced numerical model for predicting this power output for given weather conditions....journal article 2018
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Blanker, A.J. (author), Berendsen, P.P.A. (author), Phung, N. (author), Vroon, Z.E.A.P. (author), Zeman, M. (author), Smets, A.H.M. (author)Multi-junction solar cells are considered for various applications, as they tackle various loss mechanisms for single junction solar cells. These losses include thermalization and non-absorption below the band gap. In this work, a tandem configuration comprising copper-indium-gallium-di-selenide (CIGS) and hydrogenated amorphous silicon (a-Si...journal article 2018
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Perez Rodriguez, P. (author), Cardenas-Morcoso, Drialys (author), Digdaya, I.A. (author), Mangel Raventos, A. (author), Procel Moya, P.A. (author), Isabella, O. (author), Gimenez, Sixto (author), Zeman, M. (author), Smith, W.A. (author), Smets, A.H.M. (author)Amorphous silicon carbide (a-SiC:H) is a promising material for photoelectrochemical water splitting owing to its relatively small band-gap energy and high chemical and optoelectrical stability. This work studies the interplay between charge-carrier separation and collection, and their injection into the electrolyte, when modifying the...journal article 2018
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Tian, Y. (author), Vismara, R. (author), van Doorene, S. (author), Šutta, Pavol (author), Vančo, L’ubomír (author), Veselý, Marian (author), Vogrinčič, Peter (author), Isabella, O. (author), Zeman, M. (author)Barium disilicide (BaSi2) has been regarded as a promising absorber material for high-efficiency thin-film solar cells. However, it has confronted issues related to material synthesis and quality control. Here, we fabricate BaSi2 thin films via an industrially applicable sputtering process and uncovered the mechanism of structure transformation....journal article 2018
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Narayan, N.S. (author), Papakosta, Thekla (author), Vega Garita, V.E. (author), Qin, Z. (author), Popovic, J. (author), Bauer, P. (author), Zeman, M. (author)The rapid increase in the adoption of Solar Home Systems (SHS) in recent times hopes to ameliorate the global problem of energy poverty. The battery is a vital but usually the most expensive part of an SHS; owing to the least lifetime among other SHS components, it is also the first to fail. Estimating battery lifetime is a critical task for...journal article 2018
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Procel Moya, P.A. (author), Yang, G. (author), Isabella, O. (author), Zeman, M. (author)In this work we present a theoretical analysis of charge carriers transport mechanisms in IBC-SHJ solar cells. The concepts of contact and transport selectivity are correlated through the band bending at c-Si interface and are used to identify thin-film silicon parameters affecting fill factor (FF) and open-circuit voltage (V<sub>OC</sub>)....journal article 2018
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Gao, Y. (author), Dong, J. (author), Isabella, O. (author), Santbergen, R. (author), Tan, H. (author), Zeman, M. (author), Zhang, Kouchi (author)Vertical space bears great potential of solar energy especially for congested urban areas, where photovoltaic (PV) windows in high-rise buildings can contribute to both power generation and daylight harvest. Previous studies on sun-tracking PV windows strayed into the trade-off between tracking performance and mutual shading, failing to achieve...journal article 2018
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Yang, G. (author), Guo, Peiqing (author), Procel Moya, P.A. (author), Limodio, G. (author), Weeber, A.W. (author), Isabella, O. (author), Zeman, M. (author)In this work, we present the application of poly-Si carrier-selective passivating contacts (CSPCs) as both polarities in interdigitated back-contacted (IBC) solar cell architectures. We compared two approaches to form a gap between the back-surface field (BSF) and emitter fingers. It is proved that the gaps prepared by both approaches are...journal article 2018
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Shi, W. (author), Theelen, Mirjam (author), Illiberi, Andrea (author), van der Sar, S.J. (author), Butterling, M. (author), Schut, H. (author), Zeman, M. (author), Brück, E.H. (author), Eijt, S.W.H. (author)Positron annihilation lifetime spectroscopy (PALS) and Doppler broadening positron annihilation spectroscopy DB-PAS) depth profiling demonstrate pronounced growth of vacancy clusters at the grain boundaries of as-deposited Al-doped ZnO films deposited as transparent conductive oxide (TCO) on Cu(In, Ga)Se2 (CIGS) solar cells upon accelerated...journal article 2018
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Yu, Y. (author), Narayan, N.S. (author), Vega Garita, V.E. (author), Popovic, J. (author), Qin, Z. (author), Wagemaker, M. (author), Bauer, P. (author), Zeman, M. (author)The past few years have seen strong growth of solar-based off-grid energy solutions such as Solar Home Systems (SHS) as a means to ameliorate the grave problem of energy poverty. Battery storage is an essential component of SHS. An accurate battery model can play a vital role in SHS design. Knowing the dynamic behaviour of the battery is...journal article 2018
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Ruggeri, Edoardo (author), van Aken, Bas (author), Isabella, O. (author), Zeman, M. (author)Imaging techniques, like electroluminescence and dark lock-in thermography, are valuable quality control tools as they yield quantitative and spatially resolved information about the device. In this paper, we isolated some of the conductive foil&#x2013;cell interconnections of back-contact solar cells to study the appearance of these...journal article 2018
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Ahmadpanahi, S.H. (author), Vismara, R. (author), Isabella, O. (author), Zeman, M. (author)Periodic texturing is one of the main techniques for light-trapping in thin-film solar cells. Periodicity allows for the excitation of guided modes in the structure and, thus, largely enhances absorption. Understanding how much a guided resonance can increase the absorption is therefore of great importance. There is a common method to understand...journal article 2018
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Rezaei, N. (author), Isabella, O. (author), Vroon, Zeger (author), Zeman, M. (author)A 3-D optical modelling was calibrated to calculate the light absorption and the total reflection of fabricated CIGS solar cells. Absorption losses at molybdenum (Mo) / CIGS interface were explained in terms of plasmonic waves. To quench these losses, we assumed the insertion of a lossless dielectric spacer between Mo and CIGS, whose optical...journal article 2018
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Ziar, H. (author), Asaei, Behzad (author), Farhangi, Shahrokh (author), Isabella, O. (author), Korevaar, M.A.N. (author), Zeman, M. (author)Despite several decades of research in the field of photovoltaic (PV) systems, shading tolerance has still not been properly addressed. PV modules are influenced by shading concerning many factors, such as number and configuration of cells in the module, electrical and thermal characteristics of the cells, number and type of bypass circuits,...journal article 2017
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Chandra Mouli, G.R. (author), Schijffelen, Jos H. (author), Bauer, P. (author), Zeman, M. (author)Grid-connected photovoltaic (PV) inverters have a dc/dc converter connected to the PV for executing the maximum power point tracking. The design of an interleaved boost converter (IBC) with three switching legs for a 10-kW PV inverter is presented in this paper. This paper shows how the use of silicon carbide (SiC) switches and powdered iron...journal article 2017
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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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van de Loo, B.W.H. (author), Ingenito, A. (author), Verheijen, M.P.A.M. (author), Isabella, O. (author), Zeman, M. (author), Kessels, W. M.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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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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Santbergen, R. (author), Muthukumar, V.A. (author), Valckenborg, R.M.E. (author), van de Wall, W.J.A. (author), Smets, A.H.M. (author), Zeman, M. (author)Photovoltaic (PV) modules receive both direct light from the sun and scattered light from the sky, ground and nearby objects. The calculation of incident irradiance becomes complex when nearby objects cast shadows or reflect sunlight onto the PV modules. In this paper a flexible irradiance model is presented that takes all these effects into...journal article 2017