Regensburg 2013 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 60: Focussed Session: Organic Materials for Spintronics: From Spinterface to Devices (jointly with DS, HL, and MA)
O 60.5: Topical Talk
Donnerstag, 14. März 2013, 11:45–12:15, H32
Nanomembrane based electrodes for contacting ultra-thin organic layers — •Carlos Cesar Bof Bufon1, Celine Vervacke2, Maria Esperança Navarro Fuente2, Dominic J. Thurmer2, Christian Müller5, Michael Fronk3, Georgeta Salvan3, Dietrich R. T. Zahn3, and Oliver G. Schmidt2,4 — 1Brazilian Nanotechnology National Laboratory, CNPEM, PO Box 619, 13083-970, Campinas, Brazil — 2Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069, Dresden, Germany — 3Semiconductor Physics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107, Chemnitz, Germany — 4Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany — 5Physics Departament, UFPR, Curitiba, Brazil
One of the main challenges for accessing the electronic properties of ultrathin organic layers (UOL), and consequently their application for future devices, consists of connecting such layers to the external word. Two main problems usually arise by trying to vertically connect UOLs: i) the interdiffusion of metallic atoms into the sub-10nm molecular layers, which leads to the damaging and/or the modification of the final device behavior; ii) the presence of pin-holes across the molecular layer, which is responsible for short circuited junctions. Here we discuss the fundamentals, potentialities and limitations of using rolled up nanomembranes as top electrodes for contacting a variety of UOLs, including self-assembled monolayer's and ultra-thin organic semiconducting layers.