Searched for: subject%3A%22Polymer%255C%2Bblends%22
(1 - 12 of 12)
document
van Breemen, A.J.J.M. (author), Zaba, T. (author), Khikhlovskyi, V. (author), Michels, J. (author), Janssen, R. (author), Kemerink, M. (author), Gelinck, G. (author)
The polymer phase separation of P(VDF-TrFE):F8BT blends is studied in detail. Its morphology is key to the operation and performance of memory diodes. In this study, it is demonstrated that it is possible to direct the semiconducting domains of a phase-separating mixture of P(VDF-TrFE) and F8BT in a thin film into a highly ordered 2D lattice by...
article 2015
document
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
document
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
document
Li, X. (author), Smaal, W.T.T. (author), Kjellander, C. (author), van der Putten, B. (author), Gualandris, K. (author), Smits, E.C.P. (author), Anthony, J. (author), Broer, D.J. (author), Blom, P.W.M. (author), Genoe, J. (author), Gelinck, G.H. (author)
We present a systematic study of the influence of material composition and ink-jet processing conditions on the charge transport in bottom-gate field-effect transistors based on blends of 6,13-bis(triisopropyl-silylethynyl) pentacene (TIPS-PEN) and polystyrene. After careful process optimizations of blending ratio and printing temperature we...
article 2011
document
Mcneill, C.R. (author), Asadi, K. (author), Watts, B. (author), Blom, P.W.M. (author), de Leeuw, D.M. (author), TNO Industrie en Techniek (author)
The phase-separated structure of blends of the ferroelectric polymer P(VDF-TrFE) and the semiconducting polymer P3HT used in organic non-volatile memories is revealed with soft X-ray spectromicroscopy. These thin-film blends show a columnar morphology, with P3HT-rich columns enclosed in a continuous, essentially pure P(VDF-TrFE) phase favorable...
article 2010
document
Kjellander, B.K.C. (author), Smaal, W.T.T. (author), Anthony, J.E. (author), Gelinck, G.H. (author), TNO Industrie en Techniek (author)
We present an approach to inkjet print high-performance organic transistors by printing the organic semiconductor ink on a thin, continuous, and solvent-absorbing layer of insulating material. The ink spreading is effectively controlled by local dissolution of the layer, and during drying the characteristic circular morphology with high rims and...
article 2010
document
Jarzab, D. (author), Cordella, F. (author), Lenes, M. (author), Kooistra, F.B. (author), Blom, P.W.M. (author), Hummelen, J.C. (author), Loi, M.A. (author), TNO Industrie en Techniek (author)
Blends of poly(3-hexylthiophene) (P3HT) and the bis-adduct of [6,61-pheuyl-C\61-butyric acid methyl ester (bisPCBM) show enhanced performances in bulk-heterojunction solar cells compared to P3HT:PCBM thin films due to their higher open-circuit voltage. However, it is not clear whether the decrease of the shortcircuit current observed in P3HT...
article 2009
document
Ekblad, T. (author), Bergström, G. (author), Ederth, T. (author), Conlan, S.L. (author), Mutton, R. (author), Clare, A.S. (author), Wang, S. (author), Liu, Y. (author), Zhao, Q. (author), D'Souza, F. (author), Donnelly, G.T. (author), Willemsen, P.R. (author), Pettitt, M.E. (author), Callow, M.E. (author), Callow, J.A. (author), Liedberg, B. (author), TNO Industrie en Techniek (author)
This work describes the fabrication, characterization, and biological evaluation of a thin protein-resistant poly(ethylene glycol) (PEG)-based hydrogel coating for antifouling applications. The coating was fabricated by free-radical polymerization on silanized glass and silicon and on polystyrene-covered silicon and gold. The physicochemical...
article 2008
document
TNO Industrie en Techniek (author), Alexeev, A. (author), Loos, J. (author), Koetse, M.M. (author)
For the first time local electrical characteristics of a blend of two semiconducting polymers were studied with conductive atomic force microscopy (C-AFM). The investigated mixture is potentially interesting as the active layer in plastic photovoltaic devices. Besides conventional topography analysis of morphology and phase separation, the...
article 2006
document
Veenstra, S.C. (author), Verhees, W.J.H. (author), Kroon, J.M. (author), Koetse, M.M. (author), Sweelssen, J. (author), Bastiaansen, J.J.A.M. (author), Schoo, H.F.M. (author), Yang, X. (author), Alexeev, A. (author), Loos, J. (author), Schubert, U.S. (author), Wienk, M.M. (author), TNO Industrie (author)
Photovoltaic properties of solution-processed semiconducting polymer blends have been studied. It is demonstrated that photoinduced charge transfer occurs in binary mixtures of poly[2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) and poly-[oxa-1,4-phenylene-(1-cyano-1,2-vinylene)-(2-methoxy-5-(3, 7-dimethyloctyloxy)-1,4...
article 2004
document
Pijnenburg, K.G.W. (author), Steenbrink, A.C. (author), Giessen, E.V.D. (author), TNO Wegtransportmiddelen (author)
Microstructural investigations below the fracture surface have revealed that the rubber particles in a number of polymer-rubber blends were deformed into remarkable S-like shapes. These shapes seem to have been largely ignored in previous microstructural studies of blends, but in fact cannot be explained from the known deformation states around...
article 1999
document
Prins Maurits Laboratorium TNO (author), Bouma, R.H.B. (author), Nauta, W.J. (author), Arnauts, J.E.F. (author), van den Boomgaard, T. (author), Steuten, J.M. (author), Strathmann, H. (author)
In the production of polyethylene foams by extrusion with alkanes as a blowing agent, significant changes in the dimensions of extruded products are encountered. The dimensional stability of a foam with a structure of closed cells is improved by blending the polymer with small amounts of a low molecular weight additive. It is believed that the...
article 1997
Searched for: subject%3A%22Polymer%255C%2Bblends%22
(1 - 12 of 12)