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Updated: Aug 19, 2026

Atomically Defined Templates for Epitaxial Growth of Complex Oxide Thin Films
Published on: December 4, 2014
Line-on-line coincidence: a new type of epitaxy found in organic-organic heterolayers
Stefan C B Mannsfeld1, Karl Leo, Torsten Fritz
1Institut für Angewandte Photophysik, Technische Universität Dresden, D-01062 Dresden, Germany.
Abstract:
We propose a new type of epitaxy, line-on-line coincidence (LOL), which explains the ordering in the organic-organic heterolayer system PTCDA on HBC on graphite. LOL epitaxy is similar to point-on-line coincidence (POL) in the sense that all overlayer molecules lie on parallel, equally spaced lines. The key difference to POL is that these lines are not restricted to primitive lattice lines of the substrate lattice. Potential energy calculations demonstrate that this new type of epitaxy is indeed characterized by a minimum in the overlayer-substrate interaction potential.
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