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Najafi M., (author), Theelen, M. (author), Fledderus, H. (author), Zhang, D. (author), Zardetto, V. (author), van Aken, B. (author), Veenstra, S. (author)Semitransparent perovskite solar cells (ST-PSCs) are very attractive due to their potential applications in single junctions for building-integrated photovoltaics (BIPV) and in tandem PV technology using low-bandgap bottom solar cells. Despite the high efficiency achieved, the ST-PSCs still suffer low bifaciality, which can limit their overall...article 2022
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Zhang, D. (author), Datta, K. (author), Zardetto, V. (author), Veenstra, S. (author), Coletti, G. (author), Janssen, R.A.J. (author)Recently perovskite/crystalline Si (cSi) tandem cells draw considerable attention because their high efficiency can reduce the levelized cost of electricity and increase the power density of photovoltaics (PVs) to accelerate the energy transition. While the theoretical limits for tandem cells are well known, the practical limits are less clear....article 2022
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Smirnov, Y. (author), Schmengler, L. (author), Kuik, R. (author), Repecaud, P.A. (author), Najafi, M. (author), Zhang, D. (author), Theelen, M. (author), Aydin, E. (author), Veenstra, S. (author), de Wolf, S. (author), Morales-Masis, M. (author)Sputtered transparent conducting oxides (TCOs) are widely accepted transparent electrodes for several types of high-efficiency solar cells. However, the different sputtering yield of atoms makes stoichiometric transfer of target material challenging for multi-compounds. Additionally, the high kinetic energies of the arriving species may damage...article 2021
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Bracesco, A.E.A. (author), Burgess, C.H. (author), Todinova, A. (author), Zardetto, V. (author), Koushik, D. (author), Kessels, M.M. (author), Dogan, I. (author), Weijtens, C.H.L. (author), Veenstra, S. (author), Andriessen, R. (author), Creatore, M. (author)The chemistry of the interface between the metal halide perovskite absorber and the charge transport layer affects the performance and stability of metal halide perovskite solar cells (PSCs). The literature provides several examples of poor PSC conversion efficiency values, when electron transport layers (ETLs), such as SnO2 and TiO2, are...article 2020
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Glowienka, D. (author), Zhang, D. (author), di Giacomo, F. (author), Najafi, M. (author), Veenstra, S. (author), Szmytkowski, J. (author), Galagan, Y. (author)In order to achieve the highest performance of organometal trihalide perovskite solar cells, it is required to recognize the dominant mechanisms which play a key role in a perovskite material. In the following studies, we have focused on the interfacial recombination between the hole transporting layer (HTL) and the perovskite CH3NH3PbI3 in...article 2019
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Najafi, M. (author), Zhang, D. (author), Zardetto, V. (author), Lifka, H. (author), Verhees, W. (author), 't Mannetje, H. (author), Fledderus, H. (author), Di Giacomo, F. (author), Hupkes, J. (author), Poodt, P. (author), Galagann, Y. (author), Luxembourg, S. (author), Coletti, G. (author), Geerligs, B. (author), Linden, H. (author), Veenstra, S. (author), Andriessen, R. (author)In this work, efficient rigid and flexible semi-transparent perovskite solar cells (ST-PSCs) were prepared in inverted (light incidence through hole transport layer) configuration. All layers were deposited by a combination of low-temperature solution-based, sputtering and spatial atomic layer deposition (sALD) techniques, which can be...conference paper 2019
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Zardetto, V. (author), Galagan, Y. (author), Creatore, M. (author), Coletti, G. (author), Poodt, P. (author), Veenstra, S. (author), Andriessen, R. (author), di Giacomo, F. (author), Zhang, D. (author), Burgess, C. (author), Verhees, W. (author), Fledderus, H. (author), Dogan, I. (author), Najafi, M. (author), Lifka, H. (author)In order to commercialize the perovskite solar cells (PSC) technology, efficient and industrial deposition methods over large areas have to be adopted, and the device architectures have to provide long term stability. In this work we combine several upscalable deposition methods to develop a stable semitransparent PSC. The control of the...conference paper 2019
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Zhang, D. (author), Najafi, M. (author), Zardetto, V. (author), Dorenkamper, M. (author), Verhees, W. (author), Zhou, X. (author), Senes, A. (author), Gutjahr, A. (author), Romijn, I. (author), Veenstra, S. (author), Geerligs, B. (author), Creatore, M. (author), Aernouts, T. (author), Andriessen, R. (author)In this contribution the development of highefficiency planar semi-transparent perovskite solar cells (STPSCs) for tandem applications is presented. The ST-PSC absorber layer, and electron and hole transport layers were processed using spin coating. The near-infrared (NIR) transmission of the ST-PSC is optimized by improving ITO material quality...conference paper 2018
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Najafi, M. (author), Zhang, D. (author), Zardetto, V. (author), Di Giacomo, F. (author), Jaysankar, M. (author), Coletti, G. (author), Dorenkamper, M.S. (author), Lifka, H. (author), Verhees, W.J.H. (author), Poodt, P. (author), Geerligs, L.J. (author), Aernouts, T. (author), Veenstra, S. (author), Andriessen, H.A.J.M. (author)The purpose of the work is to investigate high-efficient and stable 4-terminal perovskite/c-Si tandem devices. Hybrid tandems of c-Si bottom cells and perovskite top cells are perhaps the most promising candidates to reduce the levelized cost of electricity by increasing the overall tandem cell efficiency. To turn this promise in a commercial...conference paper 2018
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Najafi, M. (author), Di Giacomo, F. (author), Zhang, D. (author), Shanmugam, S. (author), Senes, A. (author), Verhees, W. (author), Hadipour, A. (author), Galagan, Y. (author), Aernouts, T. (author), Veenstra, S. (author), Andriessen, R. (author)In this study, the fabrication of highly efficient and durable flexible inverted perovskite solar cells (PSCs) is reported. Presynthesized, solution-derived NiOx and ZnO nanoparticles films are employed at room temperature as a hole transport layer (HTL) and electron transport layer (ETL), respectively. The triple cation perovskite films are...article 2018
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di Giacomo, F.D. (author), Fledderus, H. (author), Gorter, H. (author), Kirchner, G. (author), Vries, I.D. (author), Dogan, I. (author), Verhees, W. (author), Zardetto, V. (author), Najafi, M. (author), Zhang, D. (author), Lifka, H. (author), Galagan, Y. (author), Aernouts, T. (author), Veenstra, S. (author), Groen, P. (author), Andriesse, R. (author)The industrialization of perovskite solar cells (PSC) require processes to efficiently deposit the constituent layers over large areas. In this work we optimized the use of slot die coating process for both sheet-to-sheet (S2S) and roll-to-roll (R2R) manufacturing. Particular focus have been put on the control of the uniformity of perovskite...conference paper 2018
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Zardetto, V. (author), Senes, A. (author), Najafi, M. (author), Zhang, D. (author), Joly, R. (author), Chippari, M. (author), Arneouts, T. (author), Poodt, P. (author), Veenstra, S. (author), Andriessen, R. (author)In order to bring the organo-lead halide perovskite solar cells (PSC) towards the commercialization, the device stability needs to be drastically improved. Our approach relies on the introduction of a compact metal oxide (MeO) layer in a p-i-n planar architecture by means of atmospheric pressure spatial atomic layer deposition (s-ALD) technique....conference paper 2018
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Zhang, D. (author), Najafi, M. (author), Zardetto, V. (author), Dörenkämper, M. (author), Zhou, X. (author), Veenstra, S. (author), Geerligs, L.J. (author), Aernouts, T. (author), Andriessen, R. (author)The perovskite/c-Si tandem technology is considered as a cost-effective approach to realize a cell efficiency beyond the limit of single-junction (SJ) c-Si cells. Compared to its counterpart of 2-terminal (2T) configuration, 4-terminal (4T) tandem has the advantages such as no constraint of current matching and potentially simple mechanical...article 2018
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Zardetto, V. (author), di Giacomo, F. (author), Lifka, H. (author), Verheijen, M.A. (author), Weijtens, C.H.L. (author), Black, L.E. (author), Veenstra, S. (author), Kessels, W.M.M. (author), Andriessen, R. (author), Creatore, M. (author)Perovskite solar cells (PSCs) are emerging among the photovoltaic (PV) technologies due to their high power conversion efficiency (PCE) in combination with potentially low cost manufacturing processing. In this contribution, the fabrication of efficient planar n-i-p PSCs by the modification of the electron transport layer (ETL) adopted as n-type...article 2018
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Najafi, M. (author), Zardetto, V. (author), Zhang, D. (author), Koushik, D. (author), Dorenkamper, M.S. (author), Creatore, M. (author), Andriessen, R. (author), Poodt, P. (author), Veenstra, S. (author)The replacement of the conventional top metal contact with a semi-transparent conducting electrode such as sputtered indium-tin oxide (ITO) is strictly required to adopt the perovskite solar cell (PSC) in hybrid tandem photovoltaic applications. In order to prevent sputtering damages on the perovskite absorber and the organic materials adopted...article 2018
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di Giacomo, F. (author), Galagan, Y. (author), Shanmugam, S. (author), Gorter, H. (author), van den Bruele, F. (author), Kirchner, G. (author), de Vries, I. (author), Fledderus, H. (author), Lifka, H. (author), Veenstra, S. (author), Aernouts, T. (author), Groen, P. (author), Andrissen, R. (author)Organometallic halide perovskite solar cells (PSCs) are extremely promising novel materials for thin-film photovoltaics, exhibiting efficiencies over 22% on glass and over 17% on foil 1, 2. First, a sheet-to-sheet (S2S) production of PSCs and modules on 152x152 mm2 substrates was established, using a combination of sputtering, e-beam evaporation...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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- Angmo, D. (author), Gonzalez-Valls, I. (author), Veenstra, S. (author), Verhees, W. (author), Sapkota, S. (author), Schiefer, S. (author), Zimmermann, B. (author), Galagan, Y.O. (author), Sweelssen, J. (author), Lira-Cantu, M. (author), Andriessen, H.A.J.M. (author), Kroon, J.M. (author), Krebs, F.C. (author) article 2013
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Destexhe, E. (author), Prinsen, M.K. (author), van Schöll, I. (author), Kuper, C.F. (author), Garçon, N. (author), Veenstra, S. (author), Segal, L. (author)Introduction: Inflammatory reactions are one of the potential safety concerns that are evaluated in the framework of vaccine safety testing. In nonclinical studies, the assessment of the inflammation relies notably on the measurement of biomarkers. C-reactive protein (CRP) is an acute-phase plasma protein of hepatic origin that could be used for...article 2013
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Andriessen, H.A.J.M. (author), Galagan, Y.O. (author), Rubingh, J.E.J.M. (author), Grossiord, N. (author), Blom, P.W.M. (author), Kroon, J. (author), Veenstra, S. (author), Verhees, W. (author), Slooff, L. (author), Pex, P. (author)The presence of a transparent conductive electrode such as indium tin oxide (ITO) limits the reliability and cost price of organic photovoltaic devices as it is brittle and expensive. Moreover, the relative high sheet resistance of an ITO electrode on flexible substrates limits the maximum width of a single cell. Holst Centre and ECN have...conference paper 2010