报告题目：Surface science of complex adsorbate layers – from small molecules to porphyrins
报告人：Prof. Hans-Peter Steinrück
Lehrstuhl für Physikalische Chemie II, Universität Erlangen-Nürnberg, Germany
邀请人：吴惠桢 教授
时间：04月23日，下午4:00-5:00
地点：教12-201报告厅
Abstract
Chemical reactions on surfaces can be followed in detail using X-ray photoelectron spectroscopy (XPS). From the binding energies of the adsorbate and substrate core levels, detailed information not only on the chemical composition, chemical state (e.g. oxidation state) and adsorption sites, but also on the vibronic final state in the photoemission process itself can be derived. In this presentation, two examples will be addressed. The first deals with the adsorption of saturated and unsaturated hydrocarbons on metal surfaces. From high resolution XP spectra, obtained at BESSY-II, detailed information on the adsorption, dissociation and the formation of new species, including graphene, can be derived [1]. The second example addresses the adsorption of metalloporphyrins on metal surfaces. In particular we will discuss the adsorption and selfassembly of porphyrin monolayers on metal surfaces, and the in situ synthesis of metalloporphyrins by surface-mediated metalation of free base porphyrins. Detailed insights are derived by the combination of XPS with scanning tunneling microscopy [2-4].
[1] C. Papp and H.-P. Steinrück, Surface Science Reports 68 (2013) 446-487.
[2] T. E. Shubina, H. Marbach, K. Flechtner, A. Kretschmann, N. Jux, F. Buchner,
H.-P. Steinrück, T. Clark, J. M. Gottfried, J. Am. Chem. Soc. 129 (2007) 9476-9783.
[3] S. Ditze, M. Stark, M. Drost, F. Buchner, H.-P. Steinrück, H. Marbach, Angew. Chem. Int. Edition 51 (2012) 10898–10901.
[4] M. Röckert, S. Ditze, M. Stark, J. Xiao, H.-P. Steinrück, H. Marbach, O. Lytken, J. Phys. Chem. C 118 (2014) 1661-1667.
Prof. Dr. Hans-Peter Steinrück
Biography
Prof. Hans-Peter Steinrück studied physics at the TU Graz/Austria (PhD: 1985), was a postdoc at Stanford University/USA (1985/1986), and received his Habilitation at the TU Munich/Germany in 1992. After a sabbatical at Rutgers University/USA, he became Professor of Experimental Physics at the University of Würzburg in 1993; since 1998, he holds a chair of Physical Chemistry at the University of Erlangen-Nuernberg/Germany. 2009 he was awarded a Guest Professorship at the USTC in Hefei/China. Prof. Steinrück was chairman of the Surface Science Division of the German Physical Society (2002-2004), member of the Scientific Advisory Committees of ESRF (2003-2005), BESSY II (2004-2008), ANKA (since 2009), Helmholtz Zentrum Berlin (2009-2011) and the Fritz-Haber-Institut (since 2010). In addition he serves as referee for European Research Council (ERC) and various organizations in Europe, US, China and Japan, and for more than 25 top-ranked journals in physics and chemistry. He has organized and co-organized numerous national and international conferences. At the University of Erlangen-Nuernberg, he was Dean of the Faculty of Sciences (2003-2005) and Vicepresident (2006-2011).The scientific performance is documented in more than 250 peer-reviewed publications and 160 invited lectures at international conferences and scientific institutions. The activities focus in the area of surface and interface science with main research interests in: 1) New materials with novel electronic, geometric and chemical properties, 2) Elementary steps of surface reactions and 3) Development and construction of advanced scientific apparatus. Current research topics cover ionic liquid surface science, surface science with porphyrinoids, in situ studies of surface reactions, electron beam induced deposition of nanostructures, and chemically modified graphene layers. For these investigations a large variety of experimental methods is applied, including synchrotron radiation-based photoelectron spectroscopy, scanning electron and scanning tunneling microscopy, and molecular beam methods.
