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CPP: Chemische Physik und Polymerphysik

CPP 10: POSTER Nonequilibrium Phenomena in Soft Condensed Matter

CPP 10.8: Poster

Dienstag, 28. März 2006, 17:00–19:00, P3

Monitoring Defect Dynamics by Local Minkowski Measures — •Sabine Scherdel¹, Christian Franke¹, Martin Kreis², and Robert Magerle¹ — ¹Chemische Physik, TU Chemnitz, D-09107 — ²Physikalische Chemie II, Universität Bayreuth, D-95440

To structure large surface areas block copolymer films are often used as templates. However, the dynamic and structure formation in thin block copolymer films is still under research. In particular surfaces and interfaces or different experimental conditions have a strong effect on the obtained structures. We investigate these mechanisms experimentally with in-situ scanning probe microscopy. The resulting movies are large and complex data sets. We have used local Minkowski measures to characterize defects appearing in thin films. This allows us to examine systematically the structure of defects and their neigbourhood. Furthermore, we can describe the behaviour of individual defects with a few parameters and examine the influence of the geometry in the vicinity of defects.