Spinodal patterning in organic–inorganic hybrid layer systems

Müller-Wiegand, M.; Georgiev, G.; Oesterschulze, E.; Fuhrmann, T.; Salbeck, J.
December 2002
Applied Physics Letters;12/23/2002, Vol. 81 Issue 26, p4940
Academic Journal
We demonstrate a general feature of organic films between a substrate and a deformable cladding layer: the capability of forming periodic structures by heating above the glass transition temperature of the organic film. This patterning process by self-organization is caused by the interplay of dispersion interactions and mechanical stress which leads to spinodal deformation. The dynamic evolution of the structures was investigated by time-resolved light diffraction. By prepatterning the substrate, the direction of the waves can be controlled.


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