Dresden 2011 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 42: Poster I: Progress in Micro- and Nanopatterning: Techniques and Applications (jointly with O); Spins in Organic Materials; Ion Interactions with Nano Scale Materials; Organic Electronics and Photovoltaics; Plasmonics and Nanophotonics (jointly with HL and O); High-k and Low-k Dielectrics (jointly with DF); Organic Thin Films; Nanoengineered Thin Films; Layer Deposition Processes; Layer Properties: Electrical, Optical, and Mechanical Properties; Thin Film Characterisation: Structure Analysis and Composition; Application of Thin Films
DS 42.27b: Poster
Mittwoch, 16. März 2011, 15:00–17:30, P1
Gold nanoparticles blended into an organic matrix (CuPc): morphology and electronic — •O.V. Molodtsova1, M. Knupfer2, I.M. Aristova3, V.V. Kveder3, C. Laubschat1, and V.Yu. Aristov2,3 — 1IFP, TU Dresden, D-01069 Dresden, Germany — 2IFW Dresden, Postfach 270116, D-01171 Dresden, Germany — 3ISSP, Russian Academy of Sciences, Chernogolovka, Moscow District 142432, Russia
Materials with a high on-off resistance ratio could become the basis for resistive random-access memory (RRAM). Such a “storage class memory” would revolutionize the information technology industry as outlined in [1, 2]. One type of RRAM can be based on hybrid organic-inorganic systems, mainly consisting of inorganic nanoparticles (NP) blended into an organic matrix. The evolution of the morphology and the electronic structure of the hybrid organic-inorganic system composed of gold nanoparticles (NP’s) distributed in an organic matrix - copper phthalocyanine (CuPc) - as a function of nominal gold content was studied by transmission electron microscopy and by surface- and bulk sensitive spectroscopic methods. The gold atoms deposited onto the CuPc surface diffuse into the organic matrix and self-assemble to NP’s. There is no formation of a continuous metallic Au film on top of the CuPc film up to large nominal coverage of about 130 Å considered in the present study. The gold is assembled in well defined NP’s with metallic properties.
Acknowledgements. This work was supported by the HZB (BESSYII), the DFG under grant KN393/14 and by the RFBR under grants 08-02-01170 and 10-02-00269.
[1] Z. Liu, A.A. Yasseri, J.S. Lindsey, D.F. Bocian, Science 302, 1543 (2003).
[2] J.C. Scott, Science 304 62 (2004); J.C. Scott and L.D. Bozano, Adv. Mater. 19, 1452 (2007).