Searched for: subject%3A%22Organic%255C%2Bpolymers%22
(1 - 19 of 19)
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Lee, J. (author), Roelofs, W.S.C. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author)
The spatial charge distribution in diketopyrrolopyrrole-containing ambipolar polymeric semiconductors embedded in dual-gate field-effect transistors (DGFETs) was investigated. The DGFETs have identical active channel layers but two different channel/gate interfaces, with a CYTOP™ organic dielectric layer for the top-gate and an...
article 2016
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Khikhlovskyi, V. (author), van Breemen, A.J.J.M. (author), Michels, J.J. (author), Janssen, R.A.J. (author), Gelinck, G.H. (author), Kemerink, M. (author)
In many organic electronic devices functionality is achieved by blending two or more materials, typically polymers or molecules, with distinctly different optical or electrical properties in a single film. The local scale morphology of such blends is vital for the device performance. Here, a simple approach to study the full 3D morphology of...
article 2015
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Nicolai, H.T. (author), Hof, A. (author), Oosthoek, J.L.M. (author), Blom, P.W.M. (author)
The charge transport in blue light-emitting polyspirobifluorene is investigated by both steady-state current-voltage measurements and transient electroluminescence. Both measurement techniques yield consistent results and show that the hole transport is space-charge limited. The electron current is found to be governed by a high intrinsic...
article 2011
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Mergler, Y.L. (author), Rumley-Van Gurp, R. (author), Brasser, P. (author), de Koning, M.C. (author), Goetheer, E.L.V. (author)
In this study a systematic approach was chosen to test and characterize amine systems for CO2 capture. Vapour-liquid-equilibrium measurements were performed on a homologue series of amines, with ethylene amine as base structure. Various functional groups were used that ranged in chemical and physical properties. The effect of the addition of the...
conference paper 2011
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Jarzab, D. (author), Lu, M. (author), Nicolai, H.T. (author), Blom, P.W.M. (author), Loi, M.A. (author)
Here we report on a combined photoluminescence and morphological study of a polymer-polymer blend composed of a copolymer of derivatives of polyspirobifluorene and polyfluorene (PBFF) and a derivative of polyphenylene vinylene (MDMO-PPV). Evidence of partial Förster energy transfer from PBFF to MDMO-PPV is revealed by steady-state and time...
article 2011
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Gholamrezaie, F. (author), Asadi, K. (author), Kicken, R.A.H.J. (author), Langeveld-Voss, B.M.W. (author), de Leeuw, D.M. (author), Blom, P.W.M. (author)
We investigate the modulation of the charge injection in organic field-effect transistors with self-assembled monolayers (SAMs) using both a bottom-gate and a top-gate geometry. The current modulation by using SAMs is more pronounced in the top-gate geometry due to the better defined upper surface of the bottom source and drain electrodes. By...
article 2011
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Craciun, N.I. (author), Wildeman, J. (author), Blom, P.W.M. (author), TNO Industrie en Techniek (author)
We report on the synthesis and electrical characterization of polyfluorene-triarylamine-based hole transport layers (HTLs). The solubility of the HTL can be tuned by adjustment of the chemical structure without loss of the charge transport properties. Double-layer polymer light-emitting diodes are constructed with an HTL that is not soluble in...
article 2010
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de Bruyn, P. (author), Moet, D.J.D. (author), Blom, P.W.M. (author)
Inverted polymer:fullerene solar cells with ZnO and MoO3 transport layers are demonstrated. ZnO films are prepared through spin casting of a zinc acetylacetonate hydrate solution, followed by low temperature annealing under ambient conditions. The performance of solar cells with an inverted structure is shown to be equivalent to that of...
article 2010
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Asadi, K. (author), Wildeman, J. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
Resistive switches have been fabricated using a phase-separated blend film of ferroelectric random copolymer poly(vinylidene fluoride-co-trifluoroethylene) with the organic semiconductor regio-irregular poly(3-hexylthiophene) (rir-P3HT). Spin-coated blend films have been contacted with symmetrical Ag top and Ag bottom electrodes, yielding...
article 2010
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Gholamrezaie, F. (author), Mathijssen, S.G.J. (author), Smits, E.C.P. (author), Geuns, T.C.T. (author), van Hal, P.A. (author), Ponomarenko, S.A. (author), Flesch, H.-G. (author), Resel, R. (author), Cantatore, E. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
We report on a two-dimensional highly ordered self-assembled monolayer (SAM) directly grown on a bare polymer surface. Semiconducting SAMs are utilized in field-effect transistors and combined into integrated circuits as 4-bit code generators. The driving force to form highly ordered SAMs is packing of the liquid crystalline molecules caused by...
article 2010
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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
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Bhattacharya, R. (author), de Kok, M.M. (author), Zhou, J. (author), TNO Industrie en Techniek (author)
We present a simple fabrication process that produces polymeric charge storage devices directly onto a textile surface. By using a coating of poly-(3,4-ethylenedioxythiophene):poly(styrene sulphonic acid) (PEDOT) as a solid electrolytic layer deposited between two woven silver coated polyamide yarns, we have created a simple polymeric textile...
article 2009
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Asadi, K. (author), de Boer, T.G. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
Organic non-volatile resistive bistable diodes based on phase-separated blends of ferroelectric and semiconducting polymers are fabricated. The polarization field of the ferroelectric modulates the injection barrier at the semiconductor-electrode contact and, hence, the resistance of the comprising diodes. Comparison between the on- and off...
article 2009
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Veldman, D. (author), Bastiaansen, J.J.A.M. (author), Langeveld-Voss, B.M.W. (author), Sweelssen, J. (author), Koetse, M.M. (author), Meskers, S.C.J. (author), Janssen, R.A.J. (author), TNO Industrie en Techniek (author)
Conjugated polymer-molecular dye blends of MDMO-PPV (poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene]) and PF1CVTP (poly[9,9-dioctylfluorene-2,7-diyl-alt-2,5-bis(2-thienyl-1-cyanovinyl)-1-(3′,7′-dimethyloctyloxy)-4-methoxybenzene-5″,5″-diyl]) with three dipyrrometheneboron difluoride (bodipy) dyes were studied by (time-resolved)...
article 2006
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Kemerink, M. (author), van Duren, J.K.J. (author), van Breemen, A.J.J.M. (author), Wildeman, J. (author), Wienk, M.M. (author), Blom, P.W.M. (author), Schoo, H.F.M. (author), Janssen, R.A.J. (author), TNO Industrie en Techniek (author)
The morphology of spin-cast films of poly(p-phenylenevinylene) (PPV) derivatives is studied as a function of the substitution pattern of the conjugated backbone. Moreover, the influence of concentration in the casting solution, annealing, the choice of solvent, and the role of defects are addressed. By using a recently developed scanning-probe...
article 2005
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van Woudenbergh, T. (author), Wildeman, J. (author), Blom, P.W.M. (author), Bastiaansen, J.J.A.M. (author), Langeveld-Voss, B.M.W. (author), TNO Industrie (author)
It has recently been reported that, after electrical conditioning, an ohmic hole contact is formed in poly(9,9-dioctylfluorene) (PFO)-based polymer light-emitting diodes (PLED), despite the large hole-injection barrier obtained with a poly(styrene sulfonic acid)-doped poly(3,4-ethylenedioxythiophene) (PEDOTPSS) anode. We demonstrate that the...
article 2004
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TNO Industrie (author), Meulenkamp, E.A. (author), van Aar, R. (author), Bastiaansen, J.J.A.M. (author), van den Biggelaar, A.J.M. (author), Börner, H. (author), Brunner, K. (author), Büchel, M. (author), van Dijken, A. (author), Kiggen, N.M.M. (author), Kilitziraki, M. (author), de Kok, M.M. (author), Langeveld, B.M.W. (author), Ligter, M.P.H. (author), Vulto, S.I.E. (author), van de Weijer, P. (author), de Winter, S.H.P.M. (author)
We present results and a discussion of highly efficient polymer Light-Emitting Diodes (polymer LEDs, PLEDs). The external quantum efficiency in current standard devices reaches up to 2-4% only. We have explored two routes to enhance this value. In the first route, PEDOT/PSS is replaced with a novel anode or hole injection layer. The efficiency...
conference paper 2004
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Mayer, P. (author), Vaes, W.H.J. (author), Wijnker, F. (author), Legierse, K.C.H.M. (author), Kraaij, R.H. (author), Tolls, J. (author), Hermens, J.L.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Polymer coated glass fibers were applied as disposable samplers to measure dissolved concentrations of persistent and bioaccumulative pollutants (PBPs) in sediment porewater. The method is called matrix solid-phase microextraction (matrix-SPME), because it utilizes the entire sediment matrix as a reservoir for an equilibrium extraction: A glass...
article 2000
document
Svanholm, T. (author), Molenaar, F. (author), Toussaint, A. (author), TNO Industrie (author)
The interaction between an associative thickeners in solution and an anionic surfactant has been studied with rheology and surface tension measurements. Both a HEUR thickener and low molecular weight HMHEC thickener interacted strongly with the surfactant. The addition of surfactant leads in both cases to a reinforced transient network at low...
article 1997
Searched for: subject%3A%22Organic%255C%2Bpolymers%22
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