Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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Gao, Y. (author), Dong, J. (author), Isabella, O. (author), Santbergen, R. (author), Tan, H. (author), Zeman, M. (author), Zhang, G.Q. (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), Weeber, A.W. (author), Isabella, O. (author), Zeman, M. (author)
) and deployed them in c-Si solar cells. Transmission electron microscopy analysis...
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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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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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–cell interconnections of back-contact solar cells to study the appearance of these...
journal article 2018
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Tian, Y. (author), Vismara, R. (author), van Doorene, S. (author), Sutta, P (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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Procel Moya, P.A. (author), Yang, G. (author), Isabella, O. (author), Zeman, M. (author)
)....
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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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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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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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)
The benefit of two-terminal multijunction solar cells in regard to the number
of junctions (subcells) is critically evaluated. The optical and electrical losses
inherent in the construction of multijunction cells are analyzed using information
from thin-film silicon photovoltaics as a representative case. Although
the...
journal article 2017
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Si, F.T. (author), Isabella, O. (author), Zeman, M. (author), Tan, H. (author)
We fabricated and studied quadruple-junction wide-gap a-Si:H/narrow-gap a-Si:H/a-SiGex:H/nc-Si:H thin-film silicon solar cells. It is among the first attempts in thin-film photovoltaics to make a two-terminal solar cell with four different absorber materials. Several tunnel recombination junctions were tested, and the n-SiOx:H/p-SiOx:H structure...
journal article 2017
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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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Si, F.T. (author), Isabella, O. (author), Zeman, M. (author)
Multijunction solar cells promise higher power-conversion efficiency than the single-junction. With respect to two-terminal devices, an accurate measurement of the spectral response requires a delicate adjustment of the light- and voltage-biasing; otherwise it can result in artifacts in the data and thus misinterpretation of the cell properties....
journal article 2016
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Isabella, O. (author), Vismara, R. (author), Ingenito, A. (author), Rezaei, N. (author), Zeman, M. (author)
The optical analysis of optically-textured and electrically-flat ultra-thin crystalline silicon (c-Si) slabs is presented. These slabs were endowed with decoupled front titanium-dioxide (TiO2) / back silicon-dioxide (SiO2) dielectric textures and were studied as function of two types of back reflectors: standard silver (Ag) and dielectric...
journal article 2016
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Onwudinanti, Chidozie (author), Vismara, R. (author), Isabella, O. (author), Grenet, Louis (author), Emieux, Fabrice (author), Zeman, M. (author)
We have used 3-D optical modelling to investigate light management concepts based on periodic textures and material optimization for photovoltaic devices based on Cu(In,Ga)Se2 (CIGS) absorber material. At first, calibration of the software based on the characterization of a reference (1500-nm thick) CIGS device was carried out. The effects of 1...
journal article 2016
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Gao, Y. (author), Dong, J. (author), Isabella, O. (author), Zeman, M. (author), Zhang, G (author)
Diverse solar irradiance spectra can be observed under different conditions of time, date, location, weather, etc. Since the solar irradiance spectrum is required by certain scientific and engineering applications, obtaining accurate spectral data is essential. Measurements by spectrophotometers are able to achieve accurate real-time data with...
conference paper 2016
Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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