Searched for: author%3A%22Weeber%2C+A.W.%22
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Burgers, A.R. (author), Weeber, A.W. (author), Geerligs, L.J. (author), Cesar, I. (author), Vlooswijk, A.H.G. (author), Guillevin, N. (author), Mewe, A.A. (author), Spinelli, P. (author)
Standard characterization techniques such as LBIC are difficult to apply to IBC solar cells with a front floating emitter (FFE). This is because the cells need to be under bias illumination, and this is often impossible in commercial LBIC measurement tools. To the best of our knowledge, LBIC measurements on FFE IBC cells have not been published...
article 2015
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Burgers, A.R. (author), Weeber, A.W. (author), Cesar, I. (author), Guillevin, N. (author), Mewe, A.A. (author), Spinelli, P. (author), Aishwarya Suvvi., (author)
We show how to construct an equivalent circuit for our Mercury FFE IBC cells to model features beyond the unit cell efficiently, taking into account the lateral hole transport in the FFE. We show how its predictions can be correlated with voltage maps of the FFE voltage, and used for optimum design of for instance busbars. The highest efficiency...
article 2015
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Burgers, A.R. (author), Weeber, A.W. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), Wu, Y. (author), Cesar, I. (author), Energieonderzoek Centrum Nederland (author)
In this paper, we discuss a method to determine the implied Voc as a parameter describing the passivation quality of the diffused and passivated interdigitated structure of our Mercury IBC cell, which features a front floating emitter. We investigated how to accurately determine the implied Voc of the IBC cell structure before metallization from...
conference paper 2014
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Burgers, A.R. (author), Weeber, A.W. (author), Koppes, M. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), van Aken, B.B. (author), Bende, E.E. (author), Rosca, V. (author), Cesar, I. (author), Anker, J. (author), Energieonderzoek Centrum Nederland (author)
The back junction back contact cell, and more specifically the interdigitated back contact (IBC) cell is among the most appropriate cell design to achieve high cell efficiency. An important aspect to improve manufacturability (e.g. reduce cost) of the cell and module is to increase the rear side back surface field (BSF) region width, as this...
conference paper 2014
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Burgers, A.R. (author), Weeber, A.W. (author), Koppes, M. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), Cesar, I. (author), Anker, J. (author)
The back junction back contact cell, and more specifically the interdigitated back contact (IBC) cell is among the most appropriate cell designs to achieve highly efficient solar cells. An important aspect to improve manufacturability (e.g. reduce cost) of the cell and module is to increase the rear side back surface field (BSF) region width, as...
article 2014
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Weeber, A.W. (author), Luxembourg, S.L. (author), Santbergen, R. (author), Zeman, M. (author), Ingenito, A. (author), OrtizLizcano, J.C. (author), Isabella, O. (author)
At present, research in c-Si solar cells is focused on increasing the efficiency while reducing the amount of used materials. Since silicon wafer and metal contribute up to 50% to the cost of a module, it is crucial to reduce the amount of these materials to fabricate cost-effective modules. In particular, for reducing the consumption of metal,...
article 2014
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Burgers, A.R. (author), Weeber, A.W. (author), Luxembourg, S.L. (author), Limpens, R. (author), Gregorkiewicz, T. (author)
Silicon nanocrystals (Si NCs) in a matrix of SiO2 were applied to the front of a p-type c-Si solar cell as down-shifter. The downshifting action of the Si NCs was confirmed from the analysis of spectral response measurements with the help of ray tracing simulations. Ray tracing simulations were performed to simulate the application of a Si NC...
article 2014
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Burgers, A.R. (author), Weeber, A.W. (author), Koppes, M. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), Cesar, I. (author), Energieonderzoek Centrum Nederland (author)
The back junction back contact cell, and more specifically the interdigitated back contact (IBC) cell is among the most appropriate cell designs to achieve highly efficient solar cells. An important aspect to improve manufacturability (e.g. reduce cost) of the cell and module is to increase the rear side back surface field (BSF) region width, as...
conference paper 2014
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Weeber, A.W. (author), Bultman, J.H. (author), Jansen, M.J. (author), Geerligs, L.J. (author), van Aken, B.B. (author), Bennett, I.J. (author), Heurtault, Benoit (author), Jingfeng, Xiong (author), Zhiyan, Hu (author), Gaofei, Li (author), Guillevin, N. (author), Wenchao, Zhao (author), Jianming, Wang (author), Ziqian, Wang (author), Shuquan, Tian (author), Zhiliang, Wan (author), Zhai, jiny. (author), Energieonderzoek Centrum Nederland (author)
This paper reviews our recent progress in the development of metal wrap through (MWT) cells and modules, produced from n-type Czochralski silicon wafers. The use of n-type silicon as base material allows for high efficiencies: for front emitter-contacted industrial cells, efficiencies above 20% have been reported. N-type MWT (n-MWT) cells...
conference paper 2013
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Weeber, A.W. (author), Lenzmann, F.O. (author), Olson, C.L. (author), Salpakari, J. (author), Energieonderzoek Centrum Nederland (author)
Light-trapping in solar cells by photonic nanostructures, e.g., nano-textured surfaces or metallic and non-metallic nanoparticles is a research area of great promise. A large multitude of configurations is being explored and there is a rising need for (a set of) assessment elements that help to narrow in on the most viable ones. This paper...
conference paper 2013
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Janssen, G.J.M. (author), Weeber, A.W. (author), Manshanden, P. (author), Granneman, E. (author), Cesar, I. (author), Siarheyeva, O. (author), Energieonderzoek Centrum Nederland (author)
The p-type bi-facial cell concept, p-PASHA (Passivated on all sides H- pattern), is developed at ECN and employs an uncapped AlOx passivation layer on the rear through which a screen printed H-pattern of aluminium contacts is fired. Here we report a net gain in cell efficiency of 0.2% absolute for the p-PASHA cell vs. industrial reference with...
conference paper 2013
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van Roosmalen, J.A.M. (author), Weeber, A.W. (author), Bronsveld, P.C.P. (author), Zhang, D. (author), Digdaya, I.A. (author), Santbergen, R. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author)
In this contribution optical simulations of both ?at and textured heterojunction silicon solar cells are presented and veri?ed experimentally. Using Advanced Semiconductor Analysis (ASA) software, we optimize a double-layer anti-re?ective (AR) coating, which has an additional SiOx ?lm on the top of the existing indium tin oxide (ITO) coating....
article 2013
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Weeber, A.W. (author), Bakker, N.J. (author), Lenzmann, F.O. (author), Polman, A. (author), Notta, J.B. (author), Spinelli, P. (author), Dorenkamper, M.S. (author), van Lare, M. (author), Salpakari, J. (author)
A series of (n-i-p) a-Si:H solar cells with light-trapping by front-side plasmonic Ag nonoparticle arrays was compared to a reference without the plasmonic arrays as well as to a benchmark with a conventional textured back-side reflector for light-trapping. The external quantum efficiency of the solar cells was determined experimentally by...
article 2013
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Janssen, G.J.M. (author), van Roosmalen, J.A.M. (author), Weeber, A.W. (author), Mewe, A.A. (author), Bronsveld, P.C.P. (author), de Keijzer, M.A. (author), Stodolny, M.K. (author)
In this paper we present experimental results of a low-current, high-voltage back-junction back-contact device. The concept is demonstrated by the successful transformation of finished IBC cells into XIS (Crystalline Silicon Interconnected Strips) devices, leading to 8.5 V for a series connection of 14 strip cells. Different grooving methods for...
article 2013
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Weeber, A.W. (author), Lamers, M.W.P.E. (author), Butler, K.T. (author), Harding, J.H. (author), Hintzsche, L.E. (author), Fang, C.M. (author), Marsman, M. (author), Jordan, G. (author), Kresse, G. (author), Vullum, P.E. (author)
Surface passivation by hydrogenated amorphous silicon nitride (a-SiNx:H)is determined by the combined effect of two mechanisms: so-called chemical passivation by reducing the density of interface states (Dit) and ?eld-effect passivation as a result of the number of ?xed charges Qf)at the interface with Si. These are related to the K defect...
article 2013
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Hoornstra, J. (author), Weeber, A.W. (author), Koppes, M. (author), Carr, A.J. (author), Olibet, S. (author), Cabrera, E. (author), Rudolph, D. (author), Kopecek, R. (author)
Massive savings in silicon solar cell production could be achieved by replacing the costly Ag in front side metallization pastes against cheaper metals like Ni or Zn. Regarding the attempt to split the metallization process up into a two step process, first printing a paste containing Ni or Zn instead of Ag for contact formation and second...
article 2013
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Weeber, A.W. (author), Lamers, M.W.P.E. (author), Butler, K.T. (author), Harding, J.H. (author), Vullum, P.E. (author)
In this paper two front-side a-SiNx:H layers that can be used in the solar cell industry are extensively characterized and related to solar cell efficiency. Variations in layer build up, atomic density, optical properties, bulk passivation and surface passivation are discussed. The build up of these two layers are considered against a background...
article 2013
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Weeber, A.W. (author), Lamers, M.W.P.E. (author), Hintzsche, L.E. (author), Fang, C.M. (author), Watts, T. (author), Marsman, M. (author), Jordan, G. (author), Kresse, G. (author)
We present ab initio density functional theory studies for stoichiometric as well as nonstoichiometric amorphous silicon nitride, varying the stoichiometry between Si3N4:5 and Si3N3. Stoichiometric amorphous Si3N4 contains the same local structure as crystalline Si3N4, with Si being 4-fold coordinated and N being 3-fold coordinated. Only few Si...
article 2013
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Janssen, G.J.M. (author), van Roosmalen, J.A.M. (author), Weeber, A.W. (author), Mewe, A.A. (author), Bronsveld, P.C.P. (author), de Keijzer, M.A. (author), Stodolny, M.K. (author), Energieonderzoek Centrum Nederland (author)
In this paper we present a low-current, high-voltage back-junction back-contact integrated photovoltaic concept and experimental results of such a device, consisting of strip cells: narrow solar cells instead of conventional square cells. The concept is demonstrated by the successful transformation of a completely finished IBC cell into a XIS ...
conference paper 2013
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Weeber, A.W. (author), Bultman, J.H. (author), Berkeveld, L.D. (author), Jansen, M.J. (author), Geerligs, L.J. (author), Jingfeng, Xiong (author), Zhiyan, Hu (author), Gaofei, Li (author), Guillevin, N. (author), van Aken, B.B. (author), Bennett, I.J. (author), Heurtault, B. (author), Wenchao, Zhao (author), Yingle, Chen (author), Jianming, Wang (author), Ziqian, Wang (author), Jianhui, Chen (author), Anker, J. (author), Yanlong, Shen (author), Bo, Yu (author), Shuquan, Tia. (author), Energieonderzoek Centrum Nederland (author)
This paper describes results of metal wrap through (MWT) cells produced from n-type Czochralski silicon wafers, and modules produced from those cells. The use of n-type silicon as base material allows for high efficiencies: for front emitter contacted industrial cells, efficiencies up to 20% have been reported. MWT cells allow even higher cell...
conference paper 2012
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