Searched for: department%3A%22Electrical%255C%252BSustainable%255C%252BEnergy%22
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Mazzarella, L. (author), Alcañiz Moya, A. (author), Kawa, Eliora (author), Procel Moya, P.A. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)
Electrical simulations show that the dipole formed at (i)a-Si:H/MoOx interface can explain electrical performance degradation. We experimentally manipulate this interface by a plasma treatment (PT) to mitigate the dipole strength without harming the optical response. The optimal PT + MoOx stack results in strongly improved electrical...
conference paper 2020
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Han, C. (author), Zhao, Y. (author), Mazzarella, L. (author), Santbergen, R. (author), Bento Montes, A.R. (author), Procel Moya, P.A. (author), Yang, G. (author), Zhang, Xiaodan (author), Zeman, M. (author), Isabella, O. (author)
The window layers limit the performance of silicon heterojunction (SHJ) solar cells with front and back contacts. Here, we optimized tungsten-doped indium oxide (IWO) film deposited by radio frequency magnetron sputtering at room temperature. The opto-electrical properties of the IWO were manipulated when deposited on top of thin-film silicon...
journal article 2021
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Yang, G. (author), Han, C. (author), Procel Moya, P.A. (author), Zhao, Y. (author), Singh, M. (author), Mazzarella, L. (author), Zeman, M. (author), Isabella, O. (author)
Crystalline silicon solar cells with passivating contacts based on doped poly-Si exhibit high optical parasitic losses. Aiming at minimizing these losses, we developed the oxygen-alloyed poly-Si (poly-SiOx) as suitable material for passivating contacts. From passivation point of view, poly-SiOx layers show excellent passivation quality and...
journal article 2022
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Yang, G. (author), Van de Loo, Bas (author), Stodolny, Maciej (author), Limodio, G. (author), Melskens, Jimmy (author), Isabella, O. (author), Weeber, A.W. (author), Zeman, M. (author), Kessels, W. M.M. (author)
Hydrogenation of polycrystalline silicon (poly-Si) passivating contacts is crucial for maximizing their passivation performance. This work presents the application of Al2O3 prepared by atomic layer deposition as a hydrogenating capping layer. Several important questions related to this application of Al2O3 are addressed by comparing results...
journal article 2021
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Ortiz Lizcano, J.C. (author), Procel Moya, P.A. (author), Calcabrini, A. (author), Yang, G. (author), Ingenito, Andrea (author), Santbergen, R. (author), Zeman, M. (author), Isabella, O. (author)
Building Integrated Photovoltaic systems can produce a significant portion of the energy demand of urban areas. Despite their potential, they remain a niche technology that architects and project engineers still find esthetically limited. The dark blue or black color of standard photovoltaic panels is considered inappropriate for restoration...
journal article 2021
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Yang, G. (author), Gram, Remon (author), Procel Moya, P.A. (author), Han, C. (author), Yao, Z. (author), Singh, M. (author), Zhao, Y. (author), Mazzarella, L. (author), Zeman, M. (author), Isabella, O. (author)
Passivating contacts based on poly-Si have enabled record-high c-Si solar cell efficiencies due to their excellent surface passivation quality and carrier selectivity. The eventual existence of pinholes within the ultra-thin SiOx layer is one of the key factors for carrier collection, beside the tunneling mechanism. However, pinholes are usually...
journal article 2023
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Yang, G. (author), Ingenito, A. (author), van Hameren, Nienke (author), Isabella, O. (author), Zeman, M. (author)
Ion-implanted passivating contacts based on poly-crystalline silicon (polySi) are enabled by tunneling oxide, optimized, and used to fabricate interdigitated back contact (IBC) solar cells. Both n-type (phosphorous doped) and p-type (boron doped) passivating contacts are fabricated by ion-implantation of intrinsic polySi layers deposited via low...
journal article 2016
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Zhao, Y. (author), Procel Moya, P.A. (author), Han, C. (author), Mazzarella, L. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Low activation energy (E<sub>a</sub>) and wide bandgap (E<sub>g</sub>) are essential for (p)-contacts to achieve effective hole collection in silicon heterojunction (SHJ) solar cells. In this work, we study Plasma-Enhanced Chemical Vapor Deposition p-type hydrogenated nanocrystalline silicon oxide, (p)nc-SiO<sub>x</sub>:H, combined with (p)nc...
journal article 2021
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Mazzarella, L. (author), Alcañiz Moya, A. (author), Procel Moya, P.A. (author), Kawa, Eliora (author), Zhao, Y. (author), Tiringer, U. (author), Han, C. (author), Yang, G. (author), Taheri, P. (author), Zeman, M. (author), Isabella, O. (author)
Molybdenum oxide (MoO<sub>x</sub>) is attractive for applications as hole-selective contact in silicon heterojunction solar cells for its transparency and relatively high work function. However, the integration of MoO<sub>x</sub> stacked on intrinsic amorphous silicon (i)a-Si:H layer usually exhibits some issues that are still not fully...
journal article 2020
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Zhao, Y. (author), Mazzarella, L. (author), Procel Moya, P.A. (author), Han, C. (author), Tichelaar, F.D. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Low parasitic absorption and high conductivity enable (n)-type hydrogenated nanocrystalline silicon [(n)nc-Si:H], eventually alloyed with oxygen [(n)nc-SiO<sub>x</sub>:H], to be deployed as window layer in high-efficiency silicon heterojunction (SHJ) solar cells. Besides the appropriate opto-electrical properties of these nanocrystalline...
journal article 2021
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Han, C. (author), Santbergen, R. (author), van Duffelen, Max (author), Procel Moya, P.A. (author), Zhao, Y. (author), Yang, G. (author), Zhang, Xiaodan (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author)
Reducing indium consumption, which is related to the transparent conductive oxide (TCO) use, is a key challenge for scaling up silicon heterojunction (SHJ) solar cell technology to terawatt level. In this work, we developed bifacial SHJ solar cells with reduced TCO thickness. We present three types of In<sub>2</sub>O<sub>3</sub>-based TCOs,...
journal article 2022
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Cao, L. (author), Procel Moya, P.A. (author), Alcañiz Moya, A. (author), Yan, J. (author), Tichelaar, F.D. (author), Özkol, E. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Yao, Z. (author), Zeman, M. (author), Santbergen, R. (author), Mazzarella, L. (author), Isabella, O. (author)
Thin films of transition metal oxides such as molybdenum oxide (MoO<sub>x</sub>) are attractive for application in silicon heterojunction solar cells for their potential to yield large short-circuit current density. However, full control of electrical properties of thin MoO<sub>x</sub> layers must be mastered to obtain an efficient hole...
journal article 2022
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Singh, M. (author), Amarnath, A. (author), Wagner, Fabian (author), Zhao, Y. (author), Yang, G. (author), Mazzarella, L. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Single junction crystalline silicon (c-Si) solar cells are reaching their practical efficiency limit whereas perovskite/c-Si tandem solar cells have achieved efficiencies above the theoretical limit of single junction c-Si solar cells. Next to low-thermal budget silicon heterojunction architecture, high-thermal budget carrier-selective...
journal article 2023
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Zhao, Y. (author), Procel Moya, P.A. (author), Han, C. (author), Cao, L. (author), Yang, G. (author), Özkol, E. (author), Alcañiz, Alba (author), Kovačević, K. (author), Limodio, G. (author), Santbergen, R. (author), Smets, A.H.M. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author)
Silicon heterojunction (SHJ) solar cells have achieved a record efficiency of 26.81% in a front/back-contacted (FBC) configuration. Moreover, thanks to their advantageous high V<sub>OC</sub> and good infrared response, SHJ solar cells can be further combined with wide bandgap perovskite cells forming tandem devices to enable efficiencies well...
journal article 2023
document
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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Zhao, Y. (author), Procel Moya, P.A. (author), Smets, A.H.M. (author), Mazzarella, L. (author), Han, C. (author), Yang, G. (author), Cao, L. (author), Yao, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Excellent surface passivation induced by (i)a-Si:H is critical to achieve high-efficiency silicon heterojunction (SHJ) solar cells. This is key for conventional single-junction cell applications but also for bottom cell application in tandem devices. In this study, we investigated the effects of (i)a-Si:H deposition temperature on passivation...
journal article 2022
document
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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Yang, G. (author), Zhang, Y. (author), Procel Moya, P.A. (author), Weeber, A.W. (author), Isabella, O. (author), Zeman, M. (author)
Highest conversion efficiency in crystalline silicon (c-Si) solar cells can be enabled by quenching minority carriers' recombination at c-Si/contact interface owing to carrier-selective passivating contacts. With the semi-insulating poly-crystalline silicon (SIPOS, poly-Si) a very good passivation of c-Si surfaces was obtained. We have...
journal article 2017
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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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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
Searched for: department%3A%22Electrical%255C%252BSustainable%255C%252BEnergy%22
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