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DS: Fachverband Dünne Schichten
DS 46: Thin Film Properties: Structure, Morphology and Composition IV
DS 46.1: Vortrag
Freitag, 20. März 2020, 11:15–11:30, CHE 89
Noble metal nanoparticles in organic matrix — •Olga Molodtsova1,2, Irina Aristova3, Sergey Babenkov4, Igor Khodos5, Dmitrii Potorochin1,2,6, Serguei Molodtsov2,6,7, and Victor Aristov1,3 — 1Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — 2ITMO University, 197101 Saint Petersburg, Russia — 3Institute of Solid State Physics of Russian Academy of Sciences, 142432 Chernogolovka, Russia — 4Institut für Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany — 5Institute of Microelectronics Technology and High-Purity Materials of Russian Academy of Sciences, 142432 Chernogolovka, Russia — 6Institut fuer Experimentelle Physik, TU Bergakademie Freiberg, 09596 Freiberg, Germany — 7Europian XFELGmbH,22869 Schenefeld, Germany
The structure and morphology of nanocomposites created by silver NPs which are self-organize in a thin organic film CuPcFx, x=0; 4, depending on the amount of deposited metal, were studied in UHV using HR-TEM and HR-PES measurements. Metallic atoms deposited on the surface of an organic substrate diffuse into the substrate, forming NPs with a narrow size distribution. With HR-TEM the distance between the atomic planes of individual silver nanoparticles was determined and the steady gathering of individual nanoparticles into agglomerates and then into nanocrystals with inter-crystallite boundaries was observed. PES revealed a generally weak interaction between silver NPs and the organic matrix. However, a strong band bending in the organic film at small coatings with metal atoms was observed.