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Datta, K. (author), Wang, J. (author), Zhang, D. (author), Zardetto, V. (author), Remmerswaal, W.H.M. (author), Weijtens, C.H.L. (author), Wienk, M.M. (author), Janssen, R.A.J. (author)Perovskite-based multijunction solar cells are a potentially cost-effective technology that can help surpass the efficiency limits of single-junction devices. However, both mixed-halide wide-bandgap perovskites and lead-tin narrow-bandgap perovskites suffer from non-radiative recombination due to the formation of bulk traps and interfacial...article 2022
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Datta, K. (author), Branco, B. (author), Zhao, Y. (author), Zardetto, V. (author), Phung, N. (author), Bracesco, A. (author), Mazzarella, L. (author), Wienk, M.M. (author), Creatore, M. (author), Isabella, O. (author), Janssen, R.A.J. (author)Solar-assisted water electrolysis is a promising technology for storing the energy of incident solar irradiation into hydrogen as a fuel. Here, an integrated continuous flow electrochemical reactor coupled to a monolithic perovskite-silicon tandem solar cell is demonstrated that provides light-driven electrochemical solar-to-hydrogen conversion...article 2022
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de Hek, A.P. (author), van de Bent, G. (author), van Vliet, F.E. (author)A state-of-the-art, second harmonically tuned, 400 W S-band MMIC power amplifier has been developed. This amplifier delivers in the 2.8 – 3.3 GHz band an output power of 400 W and a PAE between 50-55%. The obtained amplifier performance is the result of the structured design approach discussed in this paper.conference paper 2022
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Ruiz-Preciado, M.A. (author), Gota, F. (author), Fassl, P. (author), Hossain, I.M. (author), Singh, R. (author), Laufer, F. (author), Schackmar, F. (author), Feeney, T. (author), Farag, A. (author), Allegro, I. (author), Hu, H. (author), Gharibzadeh, S. (author), Nejand, B.A. (author), Gevaerts, V.S. (author), Simor, M. (author), Bolt, P.J. (author), Paetzold, U.W. (author)Monolithic two-terminal (2T) perovskite/CuInSe2 (CIS) tandem solar cells (TSCs) combine the promise of an efficient tandem photovoltaic (PV) technology with the simplicity of an all-thin-film device architecture that is compatible with flexible and lightweight PV. In this work, we present the first-ever 2T perovskite/CIS TSC with a power...article 2022
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Kronemeijer, A.J. (author), de Haas, G. (author), Verbeek, R. (author), Bel, T. (author), van de Laar, R. (author), Ugalde-Lopez, L. (author), Gelinck, G. (author)This paper presents a monolithic manufacturing process to realize active-matrix meshed TFT arrays on foil with physical voids between pixels, realizing membrane-like structures for use in biometrics-under-display applications. Moreover, however, the concept enables new applications in the biomedical electronics domain.conference paper 2021
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Barakat, A.J. (author), Pel, L. (author), Adan, O.C.G. (author)In this study a specialized high-temperature nuclear magnetic resonance (NMR) setup is presented for measuring free moisture in monolithic refractory castables during one-sided heating (100–300 °C). This setup makes use of a high thermal-stability Birdcage-coil for measuring the quantitative moisture content at high-temperatures, while also...article 2018
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- Kronemeijer, A.J. (author), Akkerman, H. (author), van der Steen, J.L. (author), Steudel, S. (author), Pendyala, R. (author), Panditha, P. (author), Bel, T. (author), van Diesen, K. (author), de Haas, G. (author), Maas, J. (author), de Riet, J. (author), Rovers, M. (author), Verbeek, R. (author), Nag, M. (author), Verschueren, L. (author), Genoe, J. (author), Dehaene, W. (author), Lu, Y.J. (author), Chiang, S.C. (author), Huang, Y.Y. (author), Yeh, M.H. (author), Gelinck, G. (author) conference paper 2018
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Kronemeijer, A.J. (author), Katsouras, I. (author), Poodt, P. (author), Akkerman, H.B. (author), van Breemen, A.J.J.M. (author), Gelinck, G.H. (author)We present recent developments on flexible a-IGZO TFT technology scaling in terms of TFT channel length and operating voltage, as well as manufacturing cost optimization with a focus on R2R processing compatibility. We present progress on the relevant technology building blocks; (i) R2R compatible TFT architecture, (ii) (multilevel) nanoimprint...conference paper 2018
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Blanker, J. (author), Vroon, Z.A.E.P. (author), Zeman, M. (author), Smets, A. (author)Copper-indium-gallium-di-selenide (CIGS) is the present record holder in lab-scale thin-film photovoltaics (TF-PV). 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 2018
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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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- van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author) conference paper 2016
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Rodriguez-Illera, M. (author), Boon, M.A. (author), Boom, R.M. (author), Janssen, A.E.M. (author)We present guidelines for the configuration of industrial scale chromatographic separationof small molecules. We compared the performance of different axial packed beds, chan-neled monoliths and a continuous monolith assuming silica as base material. The calculatedmass transfer rates were used to calculate the height of a theoretical plate (HETP...article 2015
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van Heijningen, M. (author), van der Bent, G. (author), Rodenburg, M. (author), van Vliet, F.E. (author), Quay, R. (author), Brückner, P. (author), Schwantuschke, D. (author), Jukkala, P. (author), Narhi, T. (author)Solid-state power amplifiers at W-band (75 - 110 GHz) are attractive for the generation of local-oscillator (LO) power for super-heterodyne receivers operating at sub-millimetre wave frequencies, as needed for example in future space instruments for Earth observation. Apart from space applications there is a growing interest for these devices in...conference paper 2012
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Quay, R. (author), Maroldt, S. (author), Haupt, C. (author), van Heijningen, M. (author), Tessmann, A. (author), TNO Defensie en Veiligheid (author)In this paper a Gallium Nitride MMIC technology for high-power amplifiers between 27 GHz and 101 GHz based on 150 nm- and 100 nm-gate technologies is presented. The GaN HEMT MMICs are designed using coplanar waveguide transmission-line-technology on 3-inch semi-insulating SiC substrates. The measured output power of several dual-stage GaN...article 2009
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van Heijningen, M. (author), Janssen, J.P.B. (author), van Vliet, F.E. (author), TNO Defensie en Veiligheid (author)Apart from delivering very high output powers, GaN can also be used to realize robust receiver components, such as Low Noise Amplifiersand Switches. This paper presents the designand measurement results of two GaN X-band switch and LNA MMICs, designed for integration in a radar front end. The switch design shows a 1 dB compression point of 43...article 2009
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Duivenvoorde, T. (author), Leijtens, J. (author), van der Heide, E.J. (author), TNO Industrie en Techniek (author)Ongoing miniaturization of spacecraft demands the reduction in size of Attitude and Orbit Control Systems (AOCS). Therefore TNO has created a new design of a multi aperture, high performance, and miniaturized star tracker. The innovative design incorporates the latest developments in camera technology, attitude calculation and mechanical design...conference paper 2008
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Gordijn, A. (author), van den Donker, M.N. (author), Finger, F. (author), Hamers, E.A.G. (author), Jongerden, G.J. (author), Kessels, W.M.M. (author), Bartl, R. (author), van Mol, A.M.B. (author), Rath, J.K. (author), Rech, B. (author), Schlatmann, R. (author), Schropp, R.E.I. (author), Stannowski, B. (author), Stiebig, H. (author), van de Sanden, M.C.M. (author), van Swaaij, R.A.C.M.M. (author), Zeman, M. (author)In order to reduce the costs of thin-film silicon solar cell production, a manufacturing concept in which amorphous silicon (a-Si) solar cells are produced in a roll-to-roll manner on a temporary metal substrate (temporary-superstrate process) has been introduced in the Helianthos Project. Later in the process the device is transferred to a...conference paper 2007
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TNO Defensie en Veiligheid (author), Maas, A.P.M. (author), Janssen, J.P.B. (author), van Vliet, F.E. (author)A set of X-band absorptive limiter GaAs MMICs has been designed and realised using both the PPH25x foundry process from UMS and the PP50-10 process from WIN semiconductors. The innovative limiter concepts have been extensively characterised by both pulsed and CW measurements. Both passive and active topologies have been implemented. The passive...conference paper 2007
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TNO Defensie en Veiligheid (author), van Vliet, F.E. (author), de Boer, A. (author), Visser, G.C. (author)This paper presents very recent achievements in the Silicon implementation of phase and amplitude control for active electronically steered arrays. The IC combines 6-bit amplitude control with more than 20 dB amplitude range, including control logic and series-to-parallel converters. The IC is a step forward in lowering active array cost and...conference paper 2007
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den Ouden, F.C. (author), Papp, Z. (author), Zoutendijk, A.M. (author), Netten, B.D. (author), Agovic, K. (author), TNO Industrie en Techniek (author)In recent years a clear trend became visible towards vehicles equipped with intelligent driver assistance systems based on cooperation between vehicle and infrastructure. The main reason for this is the high potential cooperative systems show to increase traffic throughput and safety and to decrease emissions. This paper discusses an...conference paper 2006
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