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Mione, M.A. (author), Creyghton, Y. (author), Engeln, R. (author), Kessels, W.M.M. (author), Roozeboom, F. (author)
conference paper 2018
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de Amorim Soares, G. (author), Theelen, M.J. (author), Roosen, D. (author), Masolin, A. (author), Franssen, L. (author), Daenen, M. (author), Carolus, J. (author), Meuris, M. (author), Birrenbach, T. (author), Gerber, A. (author), Wrigley, A. (author)
conference paper 2017
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van Deelen, J. (author), Barink, M. (author)
Metallization of the front contact can increase the conductivity. We show the optical benefit by combining nanowire with a texture of the thin film stack. The parallel nanowires are placed in crevices of a texture in the optical model. Texturization reduces the reflection of both the stack and the nanowire. For a period of 500 nm, the reflection...
conference paper 2017
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Theelen, M. (author), de Amorim Soares, G. (author), Beyeler, K. (author), Steijvers, H. (author), Barreau, N. (author)
Unpackaged CIGS solar cells were simultaneously exposed to illumination and either dry heat, damp heat or dry cold followed by thermal cycling. In-situ monitoring of their electrical parameters demonstrated a rapid decrease of the efficiency for the solar cells exposed to damp heat plus illumination. This decrease was mainly driven by changes in...
conference paper 2017
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conference paper 2017
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Luxembourg, S.L. (author), Zhang, D. (author), Wu, Y. (author), Najafi, M. (author), Zardetto, V. (author), Verhees, W. (author), Burgers, A.R. (author), Veenstra, S. (author), Geerligs, L.J. (author)
In this paper we analyze and model perovskite/c-Si tandem cells with front and rear polySi passivated contacts on the bottom cell. A high-efficiency tandem approach will benefit from the high Voc potential of a c-Si bottom cell with front and rear polySi passivated contacts while the combination with a high band gap, semi-transparent, perovskite...
conference paper 2017
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Frijters, C.H. (author), Bolt, P.J. (author), Poodt, P.W.G. (author), Knaapen, R. (author), van den Brink, J. (author), Ruth, M. (author), Bremaud, D. (author), Illiberi, A. (author)
In this manuscript we present the first successful application of a spatial atomic-layer-deposition process to thin film solar cells. Zn(O,S) has been grown by spatial atomic layer deposition (S-ALD) at atmospheric pressure and applied as buffer layer in rigid and flexible CIGS cells by a lab-scale (15x15 cm2) S-ALD set-up. We achieved values of...
conference paper 2016
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Blanker, J. (author), Vroon, Z. (author), Zeman, M. (author), Smets, A. (author)
Copper-indium-gallium-di-selenide (CIGS) is the present record holder in lab-scale thin-film photovoltaics (TFPV). One of the problems of this PV technology is the scarcity of indium. Multi-junction solar cells allow better spectral utilization of the light spectrum, while the required current generation per layer is much lower, allowing much...
conference paper 2016
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Mameli, A. (author), van den Bruele, F. (author), Ande, C.K. (author), Verheijen, M.A. (author), Kessels, W.M.M. (author), Roozeboom, F. (author)
In this work we studied the deposition of silver (Ag) by spatial-ALD on molybdenum layers serving as a growth model substrate. Mo-layers were selected for testing the suitability of spatial-ALD in fabricating MoO3/Ag/MoO3 tri-layer transparent conductor (TC) stacks used for light-management optimization in organic-based and perovskites solar...
conference paper 2016
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Sporea, D. (author), Mihai, L. (author), Sporea, A. (author), Galagan, Y. (author)
Two Organic Photovoltaic devices having a photoactive layer containing Poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5- (4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM, 99%), and the layer sequences - glass/ITO/ZnO/PAL/PEDOT:PSS/Ag/encapsulation were non-destructively investigated by...
conference paper 2016
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conference paper 2016
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Flammini, M.G. (author), Debernardi, N. (author), Le Ster, M. (author), Bakker, K. (author), Dunne, B. (author), Bosman, J. (author), Theelen, M. (author)
Non-encapsulated CIGSSe solar cells, with a silver grid, were exposed to different temperatures for various periods in order to measure the effect of the heat exposure in CIGSSe modules. The heat treatment time and temperature were varied during the experiments, which were executed at atmospheric conditions. In all the cases, after reaching a...
conference paper 2016
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Theelen, M. (author), Steijvers, H. (author), Bakker, K. (author), Vink, J. (author), Mortazavi, S. (author), Mulder, A. (author), Barreau, N. (author), Roosen, D. (author), Haverkamp, E. (author)
Two hybrid degradation setups, allowing exposure of solar cells and modules to elevated temperatures and humidity as well as illumination have been built. CIGS solar cells were placed in the degradation setups, allowing real time monitoring of their electrical properties. Under open circuit conditions, the efficiency of alkali-rich CIGS solar...
conference paper 2016
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Theelen, M. (author), de Graaf, F. (author), Daume, F. (author), Barreau, N. (author), Vroon, Z. (author), Zeman, M. (author)
Degradation rates and mechanisms for molybdenum back contacts and ZnO:Al front contacts exposed to damp heat were obtained from literature and experiments. It was found that molybdenum back contacts with a higher density and covered by a MoSe2 film are more stable than their low density, bare counterparts. For ZnO:Al front contacts, various...
conference paper 2016
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Creyghton, Y. (author), Illiberi, A. (author), Mione, M. (author), van Boekel, W. (author), Debernardi, N. (author), Seitz, M. (author), van den Bruele, F. (author), Poodt, P. (author), Roozeboom, F. (author)
Non-thermal plasma sources are known to lower the operation temperatures and widen the process windows in thermal ALD of thin-film materials. In spatial ALD, novel plasma sources with exceptional dimensional and chemical stability are required to provide the flow geometries optimized for efficient transport and use of radicals (O, N, H, OH, NH,...
conference paper 2016
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Creyghton, Y. (author), Illiberi, A. (author), Mione, M. (author), van Boekel, W. (author), Debernardi, N. (author), Seitz, M. (author), van den Bruele, F. (author), Poodt, P. (author), Roozeboom, F. (author)
Atomic layer deposition by means of spatial separation of reactive gases is emerging as an industrial manufacturing technology. Integration of non-thermal plasma in spatial ALD machines will further expand the process window towards lower operation temperatures and specific materials requiring radicals (O, N, H, OH, NH etc.). Plasma sources with...
conference paper 2016
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Theelen, M. (author), Barreau, N. (author), Hans, V. (author), Steijvers, H. (author), Vroon, Z. (author), Zeman, M. (author)
Non-encapsulated CIGS solar cells with different contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with higher alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100 hours, while samples with a lower alkali content retained their...
conference paper 2015
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Roozeboom, F. (author), De Gendt, S. (author), Delabie, A. (author), Elam, J.W. (author), Londergan, A. (author), van der Straten, O. (author)
conference paper 2015
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Theelen, M. (author), Foster, C. (author), Steijvers, H. (author), Barreau, N. (author), Frijters, C. (author), Vroon, Z. (author), Zeman, M. (author)
CIGS solar cells and non-covered molybdenum areas and scribes were exposed to liquid water purged with the atmospheric gases carbon dioxide (CO2), oxygen (O2), nitrogen (N2) and air in order to investigate their degradation behavior. The samples were analyzed by electrical, compositional and optical measurements before, during and after exposure...
conference paper 2015
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Voroshazi, E. (author), Yaala, M.B. (author), Uytterhoeven, G. (author), Tait, J.G. (author), Andriessen, R.H.A.J.M. (author), Galagan, Y. (author), Cheyns, D. (author)
Intrinsic light stability of transparent MoO3/Ag/TiO2 electrode is studied in four different polymer:fullerene solar cell configurations. We demonstrate that this stack can successfully replace ITO both in superstrate and substrate configurations required for non-transparent carriers. Although we observe that exposure of thin Ag layer directly...
conference paper 2015
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