Cyclopentene (C5H8) on InP(001)(2 x 4): adsorption structure
Creators
- 1. ISAS - Institute for Analytical Sciences, Department Berlin, Albert-Einstein-Str. 9, 12489 Berlin (Germany)
- 2. TU Berlin, Institut fuer Festkoerperphysik, Hardenbergstr. 36, 10623 Berlin (Germany)
- 3. Instituto de Fisica da Universidade de Brasilia (Brazil)
- 4. BESSY GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)
- 5. Universitaet Paderborn, Warburger Str. 100, 33098 Paderborn (Germany)
- 6. Universita Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma (Italy)
Description
In this study we report on the modification of the InP(001)(2 x 4) surface upon C5H8 exposure, observed by reflectance anisotropy spectroscopy (RAS), synchrotron based PES (SXPS) and LEED. The samples were prepared in ultra high vacuum and the reconstruction formation was controlled by LEED and RAS. The characteristic features at 1.8 eV in the RAS spectra related to the InP(2 x 4) surface is reduced during the deposition of the molecules and shifted towards higher photon energies. SXPS measurements of the C 1s, In 4d and P 2p core level confirm a covalent bonding of the C5H8 molecules to the top In-P mixed dimer. The molecules can be desorbed at 400 C and the (2 x 4) reconstruction can be restored. The comparison to DFT total energy calculations supports an interaction between C5H8 and the top-layer dangling bonds. From these results a structural model for the absorption of C5H8 on the InP(2 x 4) surface is proposed
Availability note (English)
Also available online: http://www.dpg-tagungen.de/index_en.htmlAdditional details
Identifiers
Publishing Information
- Journal Title
- Verhandlungen der Deutschen Physikalischen Gesellschaft
- Journal Volume
- 43
- Journal Issue
- 1
- Journal Page Range
- [1 p.]
- ISSN
- 0420-0195
- CODEN
- VDPEAZ
Conference
- Title
- Physics Education, History of Physics, Radiation and Medical Physics as well as the Working Groups Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-economic Systems, Young DPG
- Original Conference Title
- 72. Jahrestagung und DPG (Deutsche Physikalische Gesellschaft e.V.) Fruehjahrstagung der Sektion Kondensierte Materie und den Fachverbaenden: Didaktik der Physik, Geschichte der Physik, Strahlen- und Medizinphysik und den Arbeitskreisen Chancengleichheit, Industrie und Wirtschaft, Information, Physik und Abruestung, Physik Sozio-oekonomischer Systeme, Junge DPG
- Acronym
- 72. annual meeting and DPG (Deutsche Physikalische Gesellschaft e.V.) Spring meeting of the Condensed Matter Section and the Divisions
- Dates
- 25-29 Feb 2008
- Place
- Berlin (Germany)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 40077308
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION; ADSORPTION; ANISOTROPY; CHEMICAL BONDS; CYCLOALKENES; D STATES; DESORPTION; DIMERS; ELECTRON DIFFRACTION; ENERGY SPECTRA; INDIUM PHOSPHIDES; MOLECULES; P STATES; PHOTOELECTRIC EMISSION; S STATES; SPECTRAL REFLECTANCE; SURFACES; TEMPERATURE RANGE 0400-1000 K; VISIBLE SPECTRA
- Descriptors DEC
- ALKENES; COHERENT SCATTERING; DIFFRACTION; ELECTRON EMISSION; EMISSION; ENERGY LEVELS; HYDROCARBONS; INDIUM COMPOUNDS; OPTICAL PROPERTIES; ORGANIC COMPOUNDS; PHOSPHIDES; PHOSPHORUS COMPOUNDS; PHOTOELECTRIC EFFECT; PHYSICAL PROPERTIES; PNICTIDES; SCATTERING; SORPTION; SPECTRA; TEMPERATURE RANGE
Optional Information
- Notes
- Session: O 30.2 Di 12:15; No further information available