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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Loos, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (67/67 displayed)
- 2014A latex-based route to disperse carbon nanotubes in poly(2,6-dimethyl-1-1,4-phenylene ether)/polystyrene blendscitations
- 2012Nano-morphology characterization of organic bulk heterojunctions based on mono and bis-adduct fullerenescitations
- 2012Non-destructive subsurface damage monitoring in bearings failure mode using fractal dimension analysiscitations
- 2012Graphene network organisation in conductive polymer compositescitations
- 2011Triplet exciton generation in bulk-heterojunction solar cells based on endohedral fullerenescitations
- 2011High-resolution tip-enhanced Raman mappingcitations
- 2010Latex-based concept for the preparation of graphene-based polymer nanocompositescitations
- 2010Nanomorphology and charge generation in bulk heterojunctions based on low-bandgap dithiophene polymers with different bridging atomscitations
- 2010Effect of thermal annealing on the electrical conductivity of high-strength bicomponent polymer tapes containing carbon nanofillerscitations
- 2010Isotactic polypropylene/carbon nanotube composites prepared by latex technology: electrical conductivity study:
- 2010Characterization of polypropylene/layered silicate nanocomposites prepared by single-step methodcitations
- 2010P3HT/PCBM bulk heterojunction solar cells: impact of blend composition and 3D morphology on device performancecitations
- 2010Isotactic polypropylene/carbon nanotube composites prepared by latex technology: Electrical conductivity studycitations
- 2009Three-dimensional electrical property mapping with nanometer resolutioncitations
- 2009Is there a correlation between catalyst particle size and CNT diameter?citations
- 2009Conductive Polymer Tape Containing Highly Oriented Carbon Nanofillerscitations
- 2009Imaging polymer systems with high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM)citations
- 2008Compositional and electric field dependence of the dissociation of charge transfer excitons in alternating polyfluorene copolymer/fullerene blends:
- 2008High-conductivity polymer nanocomposites obtained by tailoring the characteristics of carbon nanotube fillerscitations
- 2008High-conductivity polymer nanocomposites obtained by tailoring the characteristics of carbon nanotube fillerscitations
- 2008Compositional and electric field dependence of the dissociation of charge transfer excitons in alternating polyfluorene copolymer/fullerene blendscitations
- 2008Compositional and electric field dependence of the dissociation of charge transfer excitons in alternating polyfluorene copolymer/fullerene blendscitations
- 2008Isotactic polypropylene/carbon nanotube composites prepared by latex technology. Thermal analysis of carbon nanotube-induced nucleationcitations
- 2008Micro-raman and tip-enhanced raman spectroscopy of carbon allotropescitations
- 2008On the influence of the processing conditions on the performance of electrically conductive carbon nanotube/polymer nanocompositescitations
- 2007Synthesis, characterization and photoinduction of optical anisotropy in liquid crystalline diblock azo-copolymerscitations
- 2007On the overdrawing of melt-spun isotactic polypropylene tapescitations
- 2007On the fate of carbon nanotubes : morphological characterisationscitations
- 2007Synthesis, Characterization and Photoinduction of Optical Anisotropy in Liquid Crystalline Diblock Azo-Copolymerscitations
- 2007Interfacial properties of highly oriented coextruded polypropylene tapes for the creation of recyclable all-polypropylene compositescitations
- 2007Improving polymer based photovoltaic devices by reducing the voltage loss at the donor-acceptor interfacecitations
- 2007Advanced CryoTEM and tomography for two- And three-dimensional nano-characterisation of soft matter
- 2007Nanoscale Structure of Solar Cells Based on Pure Conjugated Polymer Blendscitations
- 2007The mechanical properties of woven tape all-polypropylene compositescitations
- 2007A latex-based concept for obtaining carbon nanotube-polymer nanocomposites
- 2007A latex-based concept for obtaining carbon nanotube-polymer nanocomposites
- 2007On the crucial role of wetting in the preparation of conductive polystyrene-carbon nanotube compositescitations
- 2006The mechanical properties of unidirectional all-polypropylene compositescitations
- 2006Accurately evaluation Young's modulus of polymers through nanoindentations: a phenomenological correction factor to the Oliver and Pharr procedurecitations
- 2006The effect of temperature on ethylene polymerization over flat Phillips model catalystscitations
- 2006Nanoscale electrical characterization of semiconducting polymer blends by conductive atomic force microscopy (C-AFM)citations
- 2005Tetrahedral n-type materials: efficient quenching of the excitation of p-type polymers in amorphous filmscitations
- 2005Processing of single polymer composites using the concept of constrained fiberscitations
- 2005Nanoscale morphology of high-performance polymer solar cellscitations
- 2005Nanoscale fibrillar crystals of PET from dilute quiescent solutioncitations
- 2004Characterization of poly(p-phenylene vinylene)/methanofullerene blends of polymer solar cells by time-of-flight secondary ion mass spectrometrycitations
- 2004Characterization of poly(p-phenylene vinylene)/methanofullerene blends of polymer solar cells by time-of-flight secondary ion mass spectrometrycitations
- 2004Influence of postdrawing temperature on mechanical properties of melt-spun isotactic polypropylenecitations
- 2004Influence of postdrawing temperature on mechanical properties of melt-spun isotactic polypropylenecitations
- 2004Photovoltaic properties of a conjugated polymer blend of MDMO-PPV and PCNEPV.citations
- 2004Processing of all-polypropylene composites for ultimate recyclability
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blend to bulk heterojunction solar cell performancecitations
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blend to bulk heterojunction solar cell performancecitations
- 2004Morphology and thermal stability of the active layer in poly(p-phenylenevinylene)/methanofullerene plastic photovoltaic devicescitations
- 2004Morphology and thermal stability of the active layer in poly(p-phenylenevinylene)/methanofullerene plastic photovoltaic devices
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blends to solar-cell performancecitations
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blends to solar-cell performancecitations
- 2003Automated scanning probe microscopy as a new tool for combinatorial polymer research : conductive carbon black poly(dimethylsiloxane) compositescitations
- 2002Low surface energy polymeric films from solventless liquid oligoesters and partially fluorinated isocyanatescitations
- 2002The use of the focused ion beam technique to prepare cross-sectional transmission electron microscopy specimen of polymer solar cells deposited on glasscitations
- 2002The use of the focused ion beam technique to prepare cross-sectional transmission electron microscopy specimen of polymer solar cells deposited on glasscitations
- 2002Mechanical properties of silica-(meth)acrylate hybrid coatings on polycarbonate substratecitations
- 2002In-situ compositional and structural analysis of plastic solar cells
- 2002In-situ compositional and structural analysis of plastic solar cells
- 2001Morphological investigations of polypropylene single-fibre reinforced polypropylene model compositescitations
- 2001Morphological investigations of polypropylene single-fibre reinforced polypropylene model composites
- 2000Planar model system for olefin polymerization: the Phillips CrOx/SiO2 catalystcitations
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article
Morphology and thermal stability of the active layer in poly(p-phenylenevinylene)/methanofullerene plastic photovoltaic devices
Abstract
The morphology of composite thin films consisting of a conjugated polymer (poly[2-methoxy-5-(3‘,7‘-dimethyloctyloxy)-1,4-phenylenevinylene], MDMO-PPV) and methanofullerene ([6,6]-phenyl C61 butyric acid methyl ester, PCBM), which are used as the active layer in polymer photovoltaic devices, has been extensively studied using transmission electron microscopy (TEM) and selected-area electron diffraction (SAED). Composite MDMO-PPV:PCBM films have been prepared with PCBM concentrations varying from 20 to 90 wt %. PCBM-rich clusters are clearly observed in TEM bright-field mode when the PCBM concentration is increased to ca. 75 wt % in the composite film. The SAED analysis shows that these clusters consist of many PCBM nanocrystals with random crystallographic orientations. Furthermore, we show that these nanocrystals are also present in the homogeneous matrix at PCBM concentrations below 75 wt %. Annealing of the blend films has been performed at temperatures between 60 and 130 °C for different times. In all cases, but especially when the annealing temperature is above the glass transition temperature of MDMO-PPV (80 °C), PCBM molecules show high diffusion mobility, resulting in accelerated phase segregation and in the formation of large PCBM single crystals in the film. The observed phase segregation, even at temperatures as low as 60 °C, indicates that the thermal stability of MDMO-PPV:PCBM films will likely limit the long-term performance of solar cells based on these materials.