Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Weak adsorption of ethylene on GaAs(100)

Chen, Y and Schmidt, J and Siller, L and Barnard, J C and Palmer, R E and Chen, Yu (1998) Weak adsorption of ethylene on GaAs(100). Physical Review B, 58 (3). pp. 1177-1180. ISSN 1098-0121

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Hydrocarbon molecules are an important source of carbon contamination in semiconductor growth processes. We have investigated the adsorption of ethylene, C2H4, on the As-terminated GaAs(100)surface at 100 K in ultrahigh vacuum with high-resolution electron-energy-loss spectroscopy. We find that the ethylene molecules are predominantly adsorbed weakly (physisorbed) on the surface with the C=C double bond parallel to the As surface dimers. This behavior differs significantly from the adsorption of C2H4 on Si(100), as predicted by recent theoretical calculation. When the surface temperature is increased from 100 to 300 K, some of the physisorbed C2H4 molecules convert to chemisorbed species. [S0163-1829(98)02127-4].