Dresden 2014 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 31: Molecular Films: Properties and Preparation
O 31.8: Vortrag
Dienstag, 1. April 2014, 12:15–12:30, WIL A317
Hybrid organic-inorganic systems: metal nanoparticles (Au, Al and Ag) embedded into organic semiconductor thin film — •Olga Molodtsova1, Irina Aristova2, Oleg Vilkov3, Anetta Pietzsch3,4, Maxim Tchaplyguine4, Sergey Babenkov1, Vitaly Kveder2, and Victor Aristov1,2 — 1HASYLAB at DESY, D-22607 Hamburg, Germany — 2Russian Acad. Sci, ISSP, Chernogolovka 142432, Russia — 3HZB für Materialien und Energie, BESSY II, D-12489 Berlin, Germany — 4Lund Univ, MAX-lab, S-22100 Lund, Sweden
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. 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 properties of the hybrid organic-inorganic systems composed of aluminum, silver and gold NPs distributed in an organic matrix, CuPc and CuPcF4, as a function of nominal metal content was studied by TEM and PES using synchrotron radiation. Strong difference in morphology and electronic properties were observed for aluminum nanoparticles self-assembled in a wide-gap organic semiconductor matrix if compare to gold and silver NPs in the same matrix. E.g., on the very first stage of aluminum deposition, aluminum atoms show strong chemical interaction with substrate atoms. Supported by RFBR grant N 13-02-00818.