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Adsorption configurations of hydrocarbon ring molecules on GaAs(001)-c(4 × 4)
- Source :
- physica status solidi (b). 246:1504-1509
- Publication Year :
- 2009
- Publisher :
- Wiley, 2009.
-
Abstract
- The understanding of self–assembly and bonding mechanisms of organic molecules on semiconductor surfaces represents a central research aspect in the investigation of novel organic/inorganic interfaces and their technological applicability. Here, we investigated the adsorption and bond formation of cyclopentene and 1,4-cyclohexadiene on a GaAs(001)- c(4 × 4) surface in order to clarify the influence of the number of intra-molecular C=C double bonds on the respective adsorption sites. For a determination of the adsorption configuration, the interfaces were characterized electronically and optically by synchrotron based X-ray photoelectron spectroscopy (SXPS), low energy electron diffraction (LEED) and reflectance anisotropy spectroscopy (RAS). The results reveal significantly different adsorption configurations for the two molecules. While cyclopentene bonds with a single covalent bond to the surface, 1,4-cyclohexadiene adsorbs onto the surface by the formation of multiple covalent bonds, e.g. bridge bonds. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Details
- ISSN :
- 03701972
- Volume :
- 246
- Database :
- OpenAIRE
- Journal :
- physica status solidi (b)
- Accession number :
- edsair.doi...........0d28c7f22fec2ce0ff6f6b66185d60ad