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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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Gehrke, R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2012Influence of nanoparticle surface functionalization on the thermal stability of colloidal polystyrene filmscitations
- 2012Pattern formation of colloidal suspensions by dip-coating: An in situ grazing incidence X-ray scattering studycitations
- 2012Note: Grazing incidence small and wide angle x-ray scattering combined with imaging ellipsometrycitations
- 2012P03, the microfocus and nanofocus X-ray scattering (MiNaXS) beamline of the PETRA III storage ring: The microfocus endstationcitations
- 2011Time-resolved ultrathin cobalt film growth on a colloidal polymer templatecitations
- 2011In situ observation of cluster formation during nanoparticle solution casting on a colloidal filmcitations
- 2011Gold nanoparticle thin films on glass: Influence of film thickness and annealing time
- 2010Grazing incidence wide angle x-ray scattering at the wiggler beamline BW4 of HASYLABcitations
- 2010Determination of the local gold contact morphology on a photoactive polymer film using nanobeam GISAXScitations
- 2010Stripe-like pattern formation in airbrush-spray deposition of colloidal polymer filmcitations
- 2010Combining imaging ellipsometry and grazing incidence small angle X-ray scattering for in situ characterization of polymer nanostructurescitations
- 2010Spatially resolved investigation of solution cast nanoparticle films by X-ray scattering and multidimensional data set classificationcitations
- 2009Grazing incidence small-angle X-ray scattering microtomography demonstrated on a self-ordered dried drop of nanoparticlescitations
- 2009Determination of the ordered structure in conjugated-coil diblock copolymers films from a thickness gradient prepared by spin-coated drop techniquecitations
- 2007Small-angle scattering investigations of magnesium hydride used as a hydrogen storage materialcitations
- 2007Large scale and local scale structures in polymer blend films: A GIUSAXS and sub-microbeam GISAXS investigationcitations
- 2007Structural changes in gradient colloidal thin gold films deposited from aqueous solutioncitations
- 2007Large-scale and local-scale structures in polymer-blend films: A grazing-incidence ultra-small-angle X-ray scattering and sub-microbeam grazing-incidence small-angle X-ray scattering investigationcitations
- 2006Thin casein films as prepared by spin-coating: Influence of film thickness and of pHcitations
- 2006Route to create large-area ordered polymeric nanochannel arrayscitations
- 2006Small-angle options of the upgraded ultrasmall-angle x-ray scattering beamline BW4 at HASYLABcitations
- 2005Self-supported particle-track-etched polycarbonate membranes as templates for cylindrical polypyrrole nanotubes and nanowires: An X-ray scattering and scanning force microscopy investigationcitations
- 2004Comparative analysis of nanostructured diblock copolymer filmscitations
- 2004Dewetting of Confined Diblock Copolymer Films
- 2004Supported particle track etched polyimide membranes: A grazing incidence small-angle x-ray scattering studycitations
- 2004Dewetting of confined diblock copolymer filmscitations
- 2003Crack propagation and defect formation at polymer interfaces investigated by ultra-small angle X-ray scatteringcitations
- 2000Dewetting of thin polymer-blend films examined with GISAScitations
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article
Influence of nanoparticle surface functionalization on the thermal stability of colloidal polystyrene films
Abstract
The installation of large scale colloidal nanoparticle thin films is of great interest in sensor technology or data storage. Often, such devices are operated at elevated temperatures. In the present study, we investigate the effect of heat treatment on the structure of colloidal thin films of polystyrene (PS) nanoparticles in situ by using the combination of grazing incidence small-angle X-ray scattering (GISAXS) and optical ellipsometry. In addition, the samples are investigated with optical microscopy, atomic force microscopy (AFM), and field emission scanning electron microscopy (FESEM). To install large scale coatings on silicon wafers, spin-coating of colloidal pure PS nanoparticles and carboxylated PS nanoparticles is used. Our results indicate that thermal annealing in the vicinity of the glass transition temperature T(g) of pure PS leads to a rapid loss in the ordering of the nanoparticles in spin-coated films. For carboxylated particles, this loss of order is shifted to a higher temperature, which can be useful for applications at elevated temperatures. Our model assumes a softening of the boundaries between the individual colloidal spheres, leading to strong changes in the nanostructure morphology. While the nanostructure changes drastically, the macroscopic morphology remains unaffected by annealing near T(g).