| Zugriffsnummer | 37563 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Nanoscale patterning, macroscopic reconstruction, and enhanced surface stress by organic adsorption on vicinal surfaces |
| Autor(in); Institution |
Pollinger, Florian; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Schmitt, Stefan; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Sander, Dirk; Max-Planck-Institute for Microstructure Physics, Halle, GERMANY
Tian, Zhen; Max-Planck-Institute for Microstructure Physics, Halle, GERMANY
Kirschner, Jürgen; Max-Planck-Institute for Microstructure Physics, Halle, GERMANY
Vrdoljak, Pavo; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Stadler, Christoph; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Maier, Florian; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Marchetto, Helder; Fritz-Haber-Institute of the Max-Planck Society, Chemical Physics, Berlin, GERMANY
Schmitt, Thomas; Fritz-Haber-Institute of the Max-Planck Society, Chemical Physics, Berlin, GERMANY
Schöll, Achim; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
Umbach, Eberhard; University of Würzburg, Experimental Physics VII, Würzburg, GERMANY
|
| Quelle/Jahr | New Journal of Physics: 19 (2017), 1 - 8 |
| Artikelnummer | 013019 |
| Availability | [online only] |
| ISSN | 1367-2630 |
| DOI | |
| Verlag | London: IOP Publishing |
| Freie Schlagworte | patterning ; reconstruction ; surface stress ; STM ; SPA-LEED ; vicinal surfaces ; adsorption |
| Zusammenfassung | Self-organization is a promising method within the framework of bottom-up architectures to generate nanostructures in an efficient way. The present work demonstrates that self-organization on the length scale of a few to several tens of nanometers can be achieved by a proper combination of a large (organic) molecule and a vicinal metal surface if the local bonding of the molecule on steps is significantly stronger than that on low-index surfaces. In this case thermal annealing may lead to large mass transport of the subjacent substrate atoms such that nanometer-wide and micrometer-long molecular stripes or other patterns are being formed on high-index planes. The formation of these patterns can be controlled by the initial surface orientation and adsorbate coverage. The patterns arrange self-organized in regular arrays by repulsive mechanical interactions over long distances accompanied by a significant enhancement of surface stress. We demonstrate this effect using the planar organic molecule PTCDA as adsorbate and Ag(10 8 7) and Ag(775) surfaces as substrate. The patterns are directly observed by STM, the formation of vicinal surfaces is monitored by high-resolution electron diffraction, the microscopic surface morphology changes are followed by spectro-microscopy, and the macroscopic changes of surface stress are measured by a cantilever bending method. The in situ combination of these complementary techniques provides compelling evidence for elastic interaction and a significant stress contribution to long-range order and nanopattern formation. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 3.0 ; Creative Commons Attribution 3.0 License |
Zitierung
Pollinger, F., Schmitt, S., Sander, D., Tian, Z., Kirschner, J., Vrdoljak, P., Stadler, C., Maier, F., Marchetto, H., Schmitt, T., Schöll, A., & Umbach, E. (2017). Nanoscale patterning, macroscopic reconstruction, and enhanced surface stress by organic adsorption on vicinal surfaces. New Journal of Physics, 19, 1–8. https://doi.org/10.1088/1367-2630/aa55b8