Journal ArticleDOI
Dewetting of Thin Polymer Films: an X-ray Scattering Study
TLDR
In this paper, the surface morphology of different dewetting states of thin polymer films (polystyrene) on top of silicon substrates was investigated with diffuse X-ray scattering in the region of total external reflection.Abstract:
The surface morphology of different dewetting states of thin polymer films (polystyrene) on top of silicon substrates was investigated. With diffuse X-ray scattering in the region of total external reflection a high in-plane resolution was achieved. We observe a new nano-dewetting structure which coexists with the well known mesoscopic dewetting structures of holes, cellular pattern and drops. This nano-dewetting structure consists of small dimples with a diameter in the nanometer range. It results from the dewetting of a remaining ultra-thin polymer layer and can be explained with theoretical predictions of spinodal decomposition. The experimental results of the scattering study are confirmed with scanning-force microscopy measurements.read more
Citations
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Journal ArticleDOI
Probing surface and interface morphology with Grazing Incidence Small Angle X-Ray Scattering
TL;DR: A review of the GISAXS technique, from experimental issues to the theories underlying the data analysis, with a wealth of examples, can be found in this paper, where the authors introduce the notions of particle form factor and interference function, together with the different cases encountered according to the size/shape dispersion.
Journal ArticleDOI
Grazing incidence small-angle X-ray scattering: an advanced scattering technique for the investigation of nanostructured polymer films
TL;DR: GISAXS turned out to be a powerful advanced scattering technique for the investigation of nanostructured polymer films and has a much larger statistical significance compared to AFM.
Journal ArticleDOI
Influence of surface cleaning on dewetting of thin polystyrene films.
TL;DR: Thin polystyrene films on top of silicon substrates are a frequently investigated model system in the framework of unstable films but with respect to stability the various experiments yielded contradictory results, so the influence of preparation conditions such as the surface cleaning solves contradictions.
Journal ArticleDOI
Dewetting and pattern formation in thin polymer films as investigated in real and reciprocal space
TL;DR: In this paper, the dewetting of thin polymer films and the resulting pattern formation are reviewed and previewed, and future perspectives are discussed in addition, with particular emphasis on experiments.
Journal ArticleDOI
The control of thin film morphology by the interplay of dewetting, phase separation and microphase separation
TL;DR: In this article, the interplay between dewetting and phase separation or microphase separation controls the morphology of the polymeric structures resulting on a solid support, and the effective interface potential of the solid support is tuned by means of a change of the silicon substrate coating.
References
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Book
Intermolecular and surface forces
TL;DR: The forces between atoms and molecules are discussed in detail in this article, including the van der Waals forces between surfaces, and the forces between particles and surfaces, as well as their interactions with other forces.
Book
Phase Transitions and Critical Phenomena
TL;DR: The field of phase transitions and critical phenomena continues to be active in research, producing a steady stream of interesting and fruitful results as discussed by the authors, and the major aim of this serial is to provide review articles that can serve as standard references for research workers in the field.
Journal ArticleDOI
Surface Studies of Solids by Total Reflection of X-Rays
TL;DR: In this paper, the shape of the curve of reflected x-ray intensity vs glancing angle in the region of total reflection was analyzed to study certain structural properties of the mirror surface about 10 to several hundred angstroms deep.
Book
The optical principles of the diffraction of x-rays.
TL;DR: In this paper, Bragg et al. describe the Optik der R6ntgenstrahlen in Raumgitter and leitet damit fiber zu den experimentellen Methoden and Ergebn]ssen, die den folgenden B~nden vorbehalten bleiben.
Journal ArticleDOI
X-ray and neutron scattering from rough surfaces
TL;DR: It is shown how various well-known asymptotic power laws in S(q) are obtained from the above theory, and the theory is compared with experimental results on x-ray scattering from a polished Pyrex glass surface.