Searched for: author%3A%22Cesar%2C+I.%22
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Cesar, I. (author), van Aken, B.B. (author), Scholten, L. (author), de Goede, R. (author), Schotman, A. (author)
De aanleg van zonneparken in het buitengebied is een sterke troef in het versnellen van de energietransitie. De bodemkwaliteit in Nederlandse zonneparken komt echter in toenemende mate onder druk te staan doordat panelen te dicht op elkaar geplaatst worden. De afname in grondbelichting zorgt voor een afname van vegetatie en koolstofgehalte van...
article 2022
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van Aken, B.B. (author), Binani, A. (author), Cesar, I. (author)
Solar parks in rural areas are important in the energy transition in the Netherlands as this form of solar energy is very cost effective and can be deployed fast. Potential negative side effects of these solar parks are that they may affect the landscape, the biodiversity and the soil quality underneath the panels. Especially in many east-west...
report 2021
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Mewe, A.A. (author), Stodolny, M. (author), Manshanden, P. (author), Gutjahr, A. (author), Cesar, I. (author), Loffer, J. (author)
We present new ways to characterize, analyze and improve the patterning process of doped polysilicon (polySi) for application as passivating contacts for 6’’ high-efficiency bifacial cells and interdigitated back contact (IBC) cells. Combined with standard characterization techniques, non-destructive sheet resistance mapping with ultrahigh...
conference paper 2019
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Li, F. (author), Liu, D. (author), Wang, Z. (author), Zhai, J. (author), Zhang, W. (author), Shen, Y. (author), Shi, J. (author), Song, D. (author), Cesar, I. (author), Guillevin, N. (author), Burgers, A.R. (author), Venema, P. (author)
IBC Solar cell process was developed based on the same process equipment as used for the Yingli N-type Panda Si solar cell technology. Recombination at surface and metal contact areas as well as contact resistivity were investigated and optimized to get a balance between Voc and FF. Moreover, the IR characteristics at -10V shown homogeneous...
conference paper 2018
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Cesar, I. (author), Slooff, L.H. (author), Erberveld, M. (author), de Lange, M. (author)
De transitie naar duurzame energie is in volle gang. Om de klimaatdoelstellingen te halen is het niet voldoende om zonnepanelen enkel op daken van huizen en gebouwen te leggen. De hoeveelheid beschikbaar dakoppervlak is simpelweg te klein om in de toenemende energiebehoefte te voorzien. We kunnen er niet omheen dat een aanzienlijk deel van de...
other 2018
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Burgers, A.R. (author), Guillevin, N. (author), Mewe, A.A. (author), Cesar, I. (author), Energieonderzoek Centrum Nederland (author)
We present a back junction back contact cell with small isolated BSF island߿ݠareas, surrounded by emitter area. This is an alternative for the more common IBC cell with interdigitated fingers. The optimal cell lay-out was determined by device simulations. We used discontinuous emitter and BSF contacts, which we connected through floating metal...
conference paper 2017
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Burgers, A.R. (author), Cesar, I. (author), Guillevin, N. (author), Spinelli, P. (author), Danzl, F.J.K. (author), Sawallich, S. (author), Nagel, M. (author), Deligiannis, D. (author), Energieonderzoek Centrum Nederland (author)
Diffused IBC solar cells based on non-fire-through (NFT) metallization can achieve higher performance with respect to FT metallization, thanks to lower contact resistance. Less resistive contacts allows for lower metal fraction and thus lower contact recombination. For the application of NFT contacts, the rear side dielectric passivation layer...
conference paper 2017
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Burgers, A.R. (author), Venema, P. (author), Guillevin, N. (author), Cesar, I. (author), Zhai, jinye (author), Wang, Z. (author), Liu, D. (author), Energieonderzoek Centrum Nederland (author)
Together with Yingli Solar and Tempress Systems, ECN accelerates the development of the Mercury IBC technology by implementing its low-cost cell process in a mass production environment. The Mercury solar cell concept based on a bifacial IBC cell design with a front floating emitter (FFE) can now be fully processed on Yinglis pilot line. Pilot...
conference paper 2017
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Burgers, A.R. (author), Weeber, A.W. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), Rosca, V. (author), Cesar, I. (author), Okel, L.A.G. (author), Spinelli, P. (author), Sawallich, S. (author), Nagel, M. (author)
An integral solar cell and module concept is developed based on an IBC cell design with a front floating emitter (FFE). The FFE renders the cell resilient to electrical shading and reduces the demands on feature size. The cells are bi-facial by design. We interconnected 6” IBC cells using a conductive back sheet foil, resulting in a visually...
article 2017
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Granneman, E. (author), Cesar, I. (author), Energieonderzoek Centrum Nederland (author)
The growth of the PV market has been spectacular in the last years. At the same time a significant shift occurred in cell production location from Europe to Asia while equipment manufacturing has largely remained in Europe. To support Dutch equipment manufacturers to realize and maintain a strong position in the Photovoltaic sector, the High...
report 2016
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Burgers, A.R. (author), Kossen, E.J. (author), Guillevin, N. (author), Cesar, I. (author), Vlooswijk, A.H.G. (author), Mewe, A.A. (author), Spinelli, P. (author), Energieonderzoek Centrum Nederland (author)
In this paper we present the results of a study of the emitter contact properties of the Mercury cell, which is an n-type IBC cell with a front floating emitter. We found that contact recombination becomes higher and contact resistance becomes lower with higher firing temperature. Additionally, the contacts to light and heavy emitters were...
conference paper 2016
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Burgers, A.R. (author), Weeber, A.W. (author), Guillevin, N. (author), Mewe, A.A. (author), Cesar, I. (author), Spinelli, P. (author), Energieonderzoek Centrum Nederland (author)
IBC cells with Front Floating Emitter (FFE) pose different design challenges compared to more conventional IBC cells with FSF (Front Surface Field). The FFE enables hole transport over distances that are large compared to the typical BSF or emitter width. The core of the cell design is commonly a device simulation in which, because of the...
conference paper 2016
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Cesar, I. (author), Vlooswijk, A.H.G. (author), Guillevin, N. (author), Mewe, A.A. (author), van Loo, B. (author), Kessels, E. (author), Spinelli, P. (author), Danzl, F.J.K. (author), Sawallich, S. (author), Nagel, M. (author)
We present Terahertz (THz) transmission measurements with a spatial resolution of down to 10 ?ѭ as a new inspection technique for high-resolution sheet resistance (Rsh) measurements, that are well suited to quantify the local Rsh (n-type and p-type regions) of interdigitated back-contact (IBC) structures and to support further optimization of...
article 2016
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Janssen, G.J.M. (author), Burgers, A.R. (author), Geerligs, L.J. (author), Cesar, I. (author), Vlooswijk, A.H.G. (author), Guillevin, N. (author), van Loo, B. (author), Kessels, E. (author), Spinelli, P. (author), Mewe, mw A.A. (author), Energieonderzoek Centrum Nederland (author)
This paper presents our recent progress in the development and characterization of our 6߿ݠindustrial IBC Mercury cells. We gained more than 1% absolute in efficiency by optimizing the processes and design of the cells, resulting in 20.9% cell efficiency. Our cell process does not create a space or gap߿ݠbetween the rear-side emitter and BSF areas...
conference paper 2015
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Janssen, G.J.M. (author), Burgers, A.R. (author), Geerligs, L.J. (author), Cesar, I. (author), Vlooswijk, A.H.G. (author), Guillevin, N. (author), Mewe, A.A. (author), van de Loo, B.H.W. (author), Kessels, E. (author), Spinelli, P. (author), Energieonderzoek Centrum Nederland (author)
In this paper break-through results on our 6߿ݠindustrial Mercury cells are presented. We gained more than 1% absolute in efficiency by optimizing the processes and design of the cells, resulting in 20.9% cell efficiency. We used standard industrial equipment and the number of process steps similar to our commercial n-Pasha technology. The screen...
conference paper 2015
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Janssen, G.J.M. (author), Burgers, A.R. (author), Geerligs, L.J. (author), Cesar, I. (author), Vlooswijk, A.H.G. (author), Guillevin, N. (author), Mewe, A.A. (author), van Loo, B. (author), Kessels, E. (author), Spinelli, P. (author), Energieonderzoek Centrum Nederland (author)
This paper presents our recent progress in the development and characterization of our 6߿ݠindustrial IBC Mercury cells. We gained more than 1% absolute in efficiency by optimizing the processes and design of the cells, resulting in 20.9% cell efficiency. Our cell process does not create a space or gap߿ݠbetween the rear-side emitter and BSF areas...
conference paper 2015
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Goris, M.J.A.A. (author), Geerligs, L.J. (author), Guillevin, N. (author), Mewe, A.A. (author), van Aken, B.B. (author), Rosca, V. (author), Cesar, I. (author), Okel, L.A.G. (author), Energieonderzoek Centrum Nederland (author)
In this paper we have presented an overview of the recent reliability results obtained at ECN for foil-based p-MWT, and novel high-efficiency n-MWT and IBC back-contact modules. As deduced from extensive TC and DH testing on p-MWT modules, two alternative low-cost conductive back sheet foils were shown to improve the module reliability. Exposure...
conference paper 2015
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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
Searched for: author%3A%22Cesar%2C+I.%22
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