Physics – Condensed Matter – Materials Science
Scientific paper
2008-10-15
The Journal of Chemical Physics, Vol. 130, No. 4. (2009), 044703
Physics
Condensed Matter
Materials Science
11 pages, 5 figures The following article has been submitted to Journal of Chemical Physics. After it is published, it will be
Scientific paper
10.1063/1.3062841
Precise control of surface properties including electrical characteristics, wettability, and friction is a prerequisite for manufacturing modern organic electronic devices. The successful combination of bottom up approaches for aligning and orienting the molecules and top down techniques to structure the substrate on the nano and micrometer scale allows the cost efficient fabrication and integration of future organic light emitting diodes and organic thin film transistors. One possibility for the top down patterning of a surface is to utilize different surface free energies or wetting properties of a functional group. Here, we used friction force microscopy (FFM) to reveal chemical patterns inscribed by a photolithographic process into a photosensitive surface layer. FFM allowed the simultaneous visualization of at least three different chemical surface terminations. The underlying mechanism is related to changes in the chemical interaction between probe and film surface.
Hlawacek Gregor
Kern W.
Lex A.
Shen Qian
Teichert Christian
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