Searched for: subject%3A%22Passivating%255C+contact%22
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van Nijen, D.A. (author), Stevens, Tristan (author), Mercimek, Yavuzhan (author), Yang, G. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author), Isabella, O. (author), Manganiello, P. (author)
Nowadays, an increasing share of photovoltaic (PV) systems makes use of module- or submodule-level power electronics (PE). Furthermore, PE is used in stand-alone devices powered by PV-storage solutions. One way to facilitate further implementation of PE in PV applications is to integrate PE components into crystalline silicon PV cells. Herein...
journal article 2024
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Si, Wanyu (author)
Considering the rapidly growing energy demand in worldwide and climate deterioration caused by fossil fuel, the remarkable potential of solar energy has captured the attention of individuals and industries alike. Among different techniques, poly-Si based passivating contacts have shown great performance on solar cell application, which enabling...
master thesis 2023
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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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Yao, Z. (author), Yang, G. (author), Han, C. (author), Procel Moya, P.A. (author), Özkol, E. (author), Yan, J. (author), Zhao, Y. (author), Cao, L. (author), van Swaaij, R.A.C.M.M. (author), Mazzarella, L. (author), Isabella, O. (author)
Passivating contacts are crucial for realizing high-performance crystalline silicon solar cells. Herein, contact formation by plasma-enhanced chemical vapor deposition (PECVD) followed by an annealing step is focused on. Poly-SiO<sub>x</sub> passivating contacts by combining plasma-assisted N<sub>2</sub>O-based oxidation of silicon (PANO-SiO...
journal article 2023
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Kuruganti, V.V. (author), Mazurov, Alexander (author), Seren, Sven (author), Isabella, O. (author), Mihailetchi, Valentin D. (author)
In this work, we developed an in situ annealing process to crystallize boron-doped amorphous silicon [a-Si(p+)] layers deposited by atmospheric pressure chemical vapour deposition (APCVD) to form boron-doped polycrystalline silicon [poly-Si(p+)] layers. The influence of the temperature profiles during a-Si(p+) inline deposition on structural,...
journal article 2023
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Hou, ChengLi (author)
Silicon solar cells account for about 95% of the total photovoltaic market share. Poly-Si passivating contacts are promising techniques enabling high performance c-Si solar cells with conversion efficiency over 26.0%. The highly absorptive nature of poly-Si materials makes the transparent passivating contacts attractive, such as poly-Si(O<sub>x<...
master thesis 2022
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Zhang, Jing (author)
In recent decades, there has been increasing concern about the impact of climate change on the earth. Various countries are actively developing sustainable energy technologies, of which solar cell is one of the new energy sources with the most attention. This thesis is based on poly−Si(O<sub>x</sub>) cells consisting of SiO<sub>x</sub>/poly−Si(O...
master thesis 2022
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Wagner, Fabian (author)
Crystalline silicon (c-Si) homojunction architectures like aluminum back-surface field (Al-BSF) and passivated emitter and rear cell (PERC) dominated the solar cell market for the last decades. Recently, carrier-selective passivating contact (CSPC) designs have shown that they can effectively reduce recombination losses and exhibit efficiencies...
master thesis 2022
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Chaudhary, A. (author), Hoß, Jan (author), Lossen, Jan (author), Huster, Frank (author), Kopecek, Radovan (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author)
Passivated contact based on a thin interfacial oxide and a highly doped polysilicon layer has emerged as the next evolutionary step to increase the efficiencies of industrial silicon solar cells. To take maximum advantage from this layer stack, it is vital to limit the losses at the metal polysilicon interface, which can be quantified as...
journal article 2022
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Chaudhary, A. (author), Hos, Jan (author), Lossen, Jan (author), Huster, Frank (author), Kopecek, Radovan (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author)
In this article, we investigate the passivation quality and electrical contact properties for samples with a 150 nm thick n+ polysilicon layer in comparison to samples with a phosphorus diffused layer. High level of passivation is achieved for the samples with n+ polysilicon layer and an interfacial oxide underneath it. The contact properties...
journal article 2022
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Morisset, Audrey (author), Famprikis, T. (author), Haug, Franz Josef (author), Ingenito, Andrea (author), Ballif, Christophe (author), Bannenberg, L.J. (author)
The integration of passivating contacts based on a highly doped polycrystalline silicon (poly-Si) layer on top of a thin silicon oxide (SiOx) layer has been identified as the next step to further increase the conversion efficiency of current mainstream crystalline silicon (c-Si) solar cells. However, the interrelation between the final...
journal article 2022
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Li, Li (author)
Interdigitated back-contacted solar cell (IBC) is a successful high-efficiency solar cell concept. Without a metal grid at the front side, the metal shading loss is eliminated. However, the fabrication process of an IBC cell is much more complicated than that of a FBC cell. Within the PVMD group, two poly-Si carrier-selective passivating...
master thesis 2021
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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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Syifai, Indra (author)
Due to the high-efficiency potential over 40%, the two-terminal (2T) perovskite/c-Si tandem solar cell becomes a desirable and promising candidate for solar cells. The photovoltaic materials and devices (PVMD) group in TU Delft has developed the c-Si solar cell using poly-SiOx as carrier-selective passivating contacts. The utilization of poly...
master thesis 2020
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Kołtowska, P.D. (author)
Carrier-selective passivating contacts (CSPC) are very promising contact structures for highly efficient silicon solar cell. They provide passivation of silicon surface and high carrier selectivity. So far, superior results have been achieved through the use of a stack of poly-Si with SiO2. The objective of this project is the optimization of an...
master thesis 2020
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Limodio, G. (author), Yang, G. (author), De Groot, Yvar (author), Procel, Paul (author), Mazzarella, L. (author), Weber, Arthur W. (author), Isabella, O. (author), Zeman, M. (author)
In this work, we develop SiO<sub>x</sub>/poly-Si carrier-selective contacts grown by low-pressure chemical vapor deposition and boron or phosphorus doped by ion implantation. We investigate their passivation properties on symmetric structures while varying the thickness of poly-Si in a wide range (20-250 nm). Dose and energy of implantation...
journal article 2020
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Singh, M. (author), Santbergen, R. (author), Mazzarella, L. (author), Madrampazakis, A. (author), Yang, G. (author), Vismara, R. (author), Remes, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
The optical modelling for optimizing high-efficiency c-Si solar cells endowed with poly-SiO<sub>x</sub> or poly-SiC<sub>x</sub> carrier-selective passivating contacts (CSPCs) demands a thorough understanding of their optical properties, especially their absorption coefficient. Due to the mixed phase nature of these CSPCs, spectroscopic...
journal article 2020
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Han, C. (author), Yang, G. (author), Montes, Ana (author), Procel Moya, P.A. (author), Mazzarella, L. (author), Zhao, Y. (author), Eijt, S.W.H. (author), Schut, H. (author), Zhang, Xiaodan (author), Zeman, M. (author), Isabella, O. (author)
In high-efficiency silicon solar cells featuring carrier-selective passivating contacts based on ultrathin SiOx/poly-Si, the appropriate implementation of transparent conductive oxide (TCO) layers is of vital importance. Considerable deterioration in passivation quality occurs for thin poly-Si-based devices owing to the sputtering damage...
journal article 2020
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Limodio, G. (author)
Electricity consumption is increased in last twenty years. It is crucial therefore to find alternative, renewable and sustainable sources to mantain this development. Solar energy has proved to be a valid alternative to produce clean energy. The gigantic development of solar energy technology in the last twenty years has lead to a scenario...
doctoral thesis 2019
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Mandrampazakis, Antonis (author)
Carrier-selective passivating contacts (CSPC) are one of the most promising silicon solar cell contact structures. These contacts enable the passivation of the silicon surface as well as a high carrier selectivity. So far excellent results have been demonstrated with the use of poly-Si in stack with SiO2. In this work, we optimize an alternative...
master thesis 2019
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