Regensburg 2013 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 88: Molecular Films
O 88.7: Vortrag
Freitag, 15. März 2013, 12:00–12:15, H38
Confinement of electrons in metal-coordinated and covalently bonded two dimensional nanoporous molecular networks — •Aneliia Shchyrba1, Susanne Martens1, Christian Wäckerlin2, Toni Ivas1, Jorge Lobo-Checa3, Manfred Matena4, Lutz H. Gade5, Meike Stöhr6, and Thomas A. Jung2 — 1University of Basel, Switzerland — 2Paul Scherrer Institut, Switzerland — 3Spanish National Research Council (CSIC), Spain — 4Donostia International Physics Center (DIPC), Spain — 5Universität Heidelberg, Germany — 6University of Groningen, Netherlands
Two dimensional (2D) nanoporous networks are intensively studied for their capability to act as quantum wells confining the surface state of a suitable substrate like Cu(111) or for the study of host-guest assemblies. Structures which are stabilized by strong interactions (i.e. by metal-coordination or by covalent bond-formation) are of special interest as they are more stable and therefore better suited to host strongly interacting guest molecules without collapse, up to elevated temperatures. Herein, we review the strictly regular, hexagonal DPDI (4,9-diaminoperylene-quinone-3,10-diimine) network which is based on metal-coordination to proceed towards novel, irregular 2D nanopores based on covalent bond-formation. While the former allows even to observe the confined surface state by spatially averaging, angle-resolved photoemission since the same confinement is repeated over-and-over, the irregular pores are observed to lead to a whole collection of differently sized and shaped quantum wells.