Searched for: author%3A%22Vroon%2C+Z.%22
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Yeung, C.P.K. (author), Habets, R. (author), Leufkens, L. (author), Colberts, F. (author), Stout, K. (author), Verheijen, M. (author), Vroon, Z. (author), Mann, D. (author), Buskens, P. (author)
Vanadium dioxide displays thermochromic properties based on its structural phase transition from monoclinic VO2 (M) to rutile VO2 (R) and vice versa, and the accompanying reversible metal-insulator transition. We developed a single layer coating comprising VO2 (M) and SiO2. We applied the coating from an alcoholic solution comprising vanadium(IV...
article 2021
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Broers, W. (author), Vasseur, V. (author), Kemp, R. (author), Abujidi, N. (author), Vroon, Z. (author)
The implementation of residential photovoltaics must increase more rapidly to combat climate change and its impacts. This challenge is addressed in this study by introducing a segmentation model in order to develop a theoretical and empirical foundation for understanding the heterogeneity of potential adopters. Data were collected by means of a...
article 2021
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Mann, D. (author), Yeung, C.P.K. (author), Habets, R. (author), Vroon, Z. (author), Buskens, P. (author)
With constantly progressing climate change and global warming, we face the challenge to reduce our energy consumption and CO2 emission. To increase the energy-efficiency in buildings, we developed a thermochromic coating for smart windows which is optimized for intermediate climates. Here we present a building energy simulation study for the use...
conference paper 2021
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Habets, R. (author), Vroon, Z. (author), Erich, B. (author), Meulendijks, N. (author), Mann, D. (author), Buskens, P. (author)
Building integrated photovoltaics (BIPV) offer aesthetics and freedom of design for architects and home owners. This can accelerate implementation and free up new spaces for solar energy harvesting at building level, which is a necessary step towards a climate neutral built environment. Colored solar panels with high conversion efficiency and...
conference paper 2021
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Rezaei, N. (author), Procel, P. (author), Simor, M. (author), Vroon, Z. (author), Zeman, M. (author), Isabella, O. (author)
An interdigitated back-contacted (IBC) configuration is proposed for submicron copper indium gallium (di)selenide (CIGS). In a modelling platform, the structure was opto-electrically optimized for maximum efficiency. The results are compared with a reference front/back-contacted (FBC) solar cell with similar absorber thickness and exhibiting 11...
article 2020
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Mann, D. (author), Yeung, C. (author), Habets, R. (author), Vroon, Z. (author), Buskens, P. (author)
The building sector contributes approximately one third of the total energy consumption worldwide. A large part of this energy is used for the heating and cooling of buildings, which can be drastically reduced by use of energy-efficient glazing. In this study, we performed building energy simulations on a prototypical residential building, and...
article 2020
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Theelen, M. (author), Ntinas, V. (author), Steijvers, H. (author), Mannetje, H. (author), Vroon, Z. (author)
Aluminum doped zinc oxide (ZnO:Al) films were deposited by sputtering on borosilicate glass (sodium poor) and soda lime glass (sodium rich). These films were exposed up to 1032 hours of damp heat (85 °C/85 % relative humidity) to study the influence of among others the sodium content of the substrate on the ZnO:Al stability. A decrease in...
article 2020
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Rezaei, N. (author), Isabella, O. (author), Vroon, Z. (author), Zeman, M. (author)
A 3-D optical modelling was calibrated to calculate the light absorption and the total reflection of fabricated CIGS solar cells. Absorption losses at molybdenum (Mo) / CIGS interface were explained in terms of plasmonic waves. To quench these losses, we assumed the insertion of a lossless dielectric spacer between Mo and CIGS, whose optical...
article 2018
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Theelen, M. (author), Liakopoulou, A. (author), Hans, V. (author), Daume, F. (author), Steijvers, H. (author), Barreau, N. (author), Vroon, Z. (author), Zeman, M. (author)
Two types of Cu(In,Ga)Se2 (CIGS) solar cells, both designed for implementation in CIGS modules, were subjected to temperatures between 25C and 105C. Simultaneous exposure to AM1.5 illumination allowed the measurement of their electrical parameters at these temperatures. These two types of solar cells, produced with different deposition routes on...
article 2017
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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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Soppe, W.J. (author), van Swaaij, R.A.C.M.M. (author), van Deelen, J. (author), Creatore, M. (author), Zhang, D. (author), Williams, B.L. (author), van der Werf, C.H.M. (author), Crombach, B. (author), van Erven, R. (author), Vroon, Z. (author), Energieonderzoek Centrum Nederland (author)
Application of structured back reflectors, made by Nano-Imprint Lithography is shown to result in excellent light trapping in a-Si and nc-Si cells on steel foil. Applying these concepts we managed to achieve back reflectors with a Haze factor of more than 95% for the entire visible wavelength regime. On these back reflectors, nc- Si and a-Si...
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
document
Buskens, P. (author), Burghoorn, M. (author), Danho Mourad, M.C. (author), Vroon, Z. (author)
Antireflective coatings (ARCs) are applied to reduce surface reflections. We review coatings that reduce the reflection of the surface of the transparent substrates float glass, polyethylene terephthalate, poly(methyl methacrylate), and polycarbonate. Three main coating concepts exist to lower the reflection at the interface of a transparent...
article 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
document
Theelen, M. (author), Hans, V. (author), Barreau, N. (author), Steijvers, H. (author), Vroon, Z. (author), Zeman, M. (author)
Unencapsulated CIGS solar cells with high and low contents of sodium (Na) and potassium (K) were simultaneously exposed to damp heat and illumination. The solar cells with a high alkali (Na, K) content exhibited higher initial conversion efficiencies, but degraded severely within 100-h, while the alkali poor samples kept relatively stable...
article 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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Theelen, M. (author), Harel, S. (author), Verschuren, M. (author), Tomassini, M. (author), Hovestad, A. (author), Barreau, N. (author), van Berkum, J. (author), Vroon, Z. (author), Zeman, M. (author)
The degradation behavior of Mo/MoSe2 layers have been investigated using damp heat exposure. The two studied molybdenum based films with different densities and microstructures were obtained by lifting off Cu(In,Ga)Se2 layers froma bilayer molybdenum stack on soda lime glass. Hereby, a glass/Mo/MoSe2 was obtained, which resembles the back...
conference paper 2015
document
Theelen, M. (author), Foster, C. (author), Steijvers, H. (author), Barreau, N. (author), Vroon, Z. (author), Zeman, M. (author)
CIGS solar cells were exposed to liquid water purged with the atmospheric gases carbon dioxide (CO<inf>2</inf>), oxygen (O<inf>2</inf>), nitrogen (N<inf>2</inf>) and air in order to investigate their chemical degradation behavior. The samples were analyzed by electrical, compositional and optical measurements before, during and after exposure in...
article 2015
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Ritzen, M. (author), Vroon, Z. (author), Rovers, R. (author), Geurts, C. (author), Blocken, B. (author)
Integration of PV in the Building Envelope (BIPV) is one of the four key developments necessary for large market PV penetration, together with PV efficiency improvement, price decrease and electricity storage [1]. In the course of BIPV development, Real-Life Lab demonstration projects are realized worldwide to contribute to this goal. In the...
conference paper 2015
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Theelen, M. (author), Steijvers, H. (author), Barreau, N. (author), Buffiere, M. (author), Brammertz, G. (author), Flammini, M.G. (author), van Vugt, R.J. (author), Vroon, Z. (author), Zeman, M. (author)
A 'hybrid' degradation setup, which allows the use of humidity, temperature and illumination as loads in order to accelerate degradation of solar cells and modules, has been designed and constructed. In this setup, the current voltage output of photovoltaic samples is automatically logged and the electrical parameters are calculated. This allows...
conference paper 2015
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