Searched for: subject%3A%22temperature%255C%2Bdependence%22
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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
document
Nikiforov, G.O. (author), Venkateshvaran, D. (author), Mooser, S. (author), Meneau, A. (author), Strobel, T. (author), Kronemeijer, A. (author), Jiang, L. (author), Lee, M.J. (author), Sirringhaus, H. (author)
The channel temperature (Tch) of solution-processed 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS pentacene) thin film transistors (TFTs) is closely monitored in real time during current–voltage (I–V) measurements carried out in a He exchange gas cryostat at various base temperatures (Tb) between 300 K and 20 K. This is done using a...
article 2016
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Williams, B.L. (author), Smit, S. (author), Kniknie, B.J. (author), Bakker, K.J. (author), Keuning, W. (author), Kessels, W.M.M. (author), Schropp, R.E.I. (author), Creatore, M. (author)
An equivalent circuit model, which allows for the presence of three types of shunting pathways, has been developed to describe the dark J-V characteristics in CIGS solar cells. Excellent agreement between the model and experimental data was apparent throughout a temperature range of 183-323K. Voltage-independent ideality factors may be extracted...
article 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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Theelen, M.J. (author), Barreau, N. (author), Daume, F. (author), Steijvers, H.L.A.H. (author), Hans, V.O. (author), Liakopoulou, A. (author), Vroon, Z.A.E.P. (author), Zeman, M. (author)
An hybrid degradation setup, in which humidity, temperature and illumination are used in order to accelerate degradation of CIGS, has been developed. This setup consists of a climate chamber, which can vary the temperature and humidity. Furthermore, an area of 80x80 cm2 is illuminated, which allows both the study of light induced behvaior and...
conference paper 2014
document
Fischer, H.R. (author), Dillingh, E.C. (author), Hermse, C.G.M. (author)
The objective of this work is to study the common features and the evolution of microstructures of bituminous binders regardless of their grade (PEN 10/20 to 160/220) and source/origin using the atomic force microscope operated in phase contrast mode. All bituminous binders show the same microstructural features, consisting of three distinct...
article 2014
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van de Ruit, K. (author), Cohen, R.I. (author), Bollen, D. (author), van Mol, T. (author), Yerushalmi-Rozen, R. (author), Janssen, R.A.J. (author), Kemerink, M. (author)
The mechanism and magnitude of the in-plane conductivity of poly(3,4-ethy-lenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin films is determined using temperature dependent conductivity measurements for various PEDOT:PSS weight ratios with and without a high boiling solvent (HBS). Without the HBS the in-plane conductivity of PEDOT:PSS...
article 2013
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TNO Kwaliteit van Leven (author), Atuonwu, J.C. (author), van Straten, G. (author), van Deventer, H.C. (author), van Boxtel, A.J.B. (author)
This work studies the controllability of heat-integrated zeolite adsorption dryers. Mean product moisture content, temperature and vitamin C concentration (representative of product quality) are considered as controlled variables. Set-point tracking and disturbance rejection controllability metrics are considered in addition to energy...
article 2012
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van den Ende, D.A. (author), Groen, W.A. (author), van der Zwaag, S. (author), TNO Industrie en Techniek (author)
In this work piezoelectric composite charge based sensors are developed, aimed at quasi-static pressure sensor or switch type applications. The use of piezoelectric composite materials allows for manufacturing robust devices which can easily be integrated with conventional polymer processing. Piezoelectric composites of lead zirconate titanate ...
article 2010
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Barink, M. (author), van den Berg, D. (author), Yakimets, I. (author), Meinders, E.R. (author), TNO Industrie en Techniek (author)
The challenge of lithographic production of electronic circuitry on polymer foil is that deformations approaching the feature sizes of the circuitry can cause considerable overlay problems and thereby malfunctioning of the devices. The substrate foil is susceptible to several types of deformations. Accurate prediction of these deformations is of...
conference paper 2010
document
Zhang, Y. (author), Blom, P.W.M. (author)
The field- and temperature dependence of the charge transport in solution-processed poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) doped with tetrafluoro- tetracyanoquinodimethane (F4-TCNQ) is investigated. Conventional charge transport models based on a density- and field-dependent mobility in combination with a constant...
article 2010
document
Hekkenberg, R.T. (author), Richards, A. (author), Beissner, K. (author), Zeqiri, B. (author), Bezemer, R.A. (author), Hodnett, M. (author), Prout, G. (author), Cantrall, C. (author), TNO Kwaliteit van Leven (author)
Ultrasound (US) physiotherapy as a clinical treatment is extremely common in the Western world. Internationally, regulation to ensure safe application of US physiotherapy by regular calibration ranges from nil to mandatory. The need for a portable power standard (PPS) has been addressed within a European Community (EC)-funded project. This PPS...
article 2006
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Eskes, C. (author), Bessou, S. (author), Bruner, L. (author), Curren, R. (author), Harbell, J. (author), Jones, P. (author), Kreiling, R. (author), Liebsch, M. (author), McNamee, P. (author), Pape, W. (author), Prinsen, M.K. (author), Seidle, T. (author), Vanparys, P. (author), Worth, A. (author), Zuang, V. (author), TNO Kwaliteit van Leven (author)
article 2005
document
Koppelman, S.J. (author), Nieuwenhuizen, W.F. (author), Gaspari, M. (author), Knippels, L.M.J. (author), Penninks, A.H. (author), Knol, E.F. (author), Hefle, S.L. (author), de Jongh, H.H.J. (author), TNO Kwaliteit van Leven (author)
The high resistance of Brazil nut 2S albumin, previously identified as an allergen, against proteolysis by pepsin was examined in this work. Although the denaturation temperature of this protein exceeds the 110 °C at neutral pH, at low pH a fully reversible thermal denaturation was observed at ∼82 °C. The poor digestibility of the protein by...
article 2005
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de Visser, P.C. (author), Govaerts, C. (author), van Hooft, P.A.V. (author), Overkleeft, H.S. (author), van Schepdael, A. (author), Hoogmartens, J. (author)
In the course of the synthesis and purification of new polymyxins and analogues, formation of a by-product with identical mass was observed and it was believed that this might be the result of acyl migration from the Nα- to the Nγ-position of residue α,γ-diaminobutyric acid 1 (Dab1) under acidic conditions. Therefore, a LC-MS/MS study was...
article 2004
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Nieuwenhuizen, W.F. (author), Dekker, H.L. (author), de Koning, L.J. (author), Gröneveld, T. (author), de Koster, C.G. (author), de Jong, G.A.H. (author)
The molecular structures determine the physical properties of milk proteins and are important for the texture of many dairy-based foods. Bovine α-lactalbumin (α-LA) is a globular 123 amino acid Ca2+ binding milk protein. Modification with microbial Ca2+ independent transglutaminase (MTGase) was used to modify lysines and glutamines in holo and...
article 2003
document
Kosters, H.A. (author), Broersen, K. (author), de Groot, J. (author), Simons, J.W.F.A. (author), Wierenga, P. (author), de Jongh, H.H.J. (author), TNO Voeding (author)
Processing of ovalbumin may result in proteins that differ more than 23°C in denaturation temperature while the structural fold is not significantly affected. This is achieved by 1) conversion of positive residues into negative ones (succinylation); 2) elimination of negative charges (methylation); 3) reducing the proteins hydrophobic exposure ...
article 2003
document
Kosters, H.A. (author), de Jongh, H.H.J. (author), TNO Voeding (author)
A number of relevant properties of Woodward's reagent K have been determined, such as the stability of the reactant and the optimal reaction conditions of the reactant with protein carboxylates. A Woodward's reagent K stock solution was stable at 4°C for prolonged time, whereas upon storage at 22°C, almost 20% of the reactive compound was lost...
article 2003
document
Wilderbeek, H.T.A. (author), van der Meer, M.G.M. (author), Jansen, M.A.G. (author), Nelissen, L. (author), Fischer, H.R. (author), van Es, J.J.G.S. (author), Bastiaansen, C.W.M. (author), Lub, J. (author), Broer, D.J. (author), Technisch Physische Dienst TNO - TH (author)
Novel phenyl benzoate-based and biphenyl-based liquid crystalline thiol-ene monomers were synthesized and their properties investigated. By varying the bridging unit and spacer length, the type of mesophase can be tuned from the low ordered nematic and smectic A phase in the case of the phenyl benzoate-based monomers, to the highly ordered...
article 2003
document
Prigent, S.V.E. (author), Gruppen, H. (author), Visser, A.J.W.G. (author), van Koningsveld, G.A. (author), de Jong, G.A.H. (author), Voragen, A.G.J. (author)
The non-covalent interactions between the monomeric phenolic compound chlorogenic acid (5-CQA) and bovine serum albumin (BSA), lysozyme, and α-lactalbumin were characterized, and their effect on protein properties was examined. 5-CQA had a low affinity for all three proteins, and these interactions seemed to show a negative cooperativity. 5-CQA...
article 2003
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