The coadsorption and interaction of molecular icosahedra with mercury

Authors

• C.C. Ilie, University of Nebraska-Lincoln
• Snjezana Balaz, University of Nebraska-LincolnFollow
• Luis G. Rosa, University of Nebraska-LincolnFollow
• Jun Zhang, University of Nebraska-LincolnFollow
• P. Lunca-Popa, University of Nebraska-Lincoln
• C. Bianchetti, Louisiana State University, Baton Rouge, LA
• R. Tittsworth, Louisiana State University, Baton Rouge, LA
• Jennifer I. Brand, University of Nebraska-LincolnFollow
• B. Doudon, University of Nebraska-Lincoln
• Peter A. Dowben, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

9-14-2005

Comments

Published in Applied Physics A 81 (2005), pp. 1613–1618. DOI: 10.1007/s00339-005-3333-y Copyright © 2005 Springer-Verlag. Used by permission. /">http://www.springerlink.com/content/1432-0630/ Submitted May 23, 2005; accepted July 6, 2005; published online September 14, 2005.

Abstract

We have investigated the changes in the electronic structure of molecularly adsorbed orthocarborane films, as a function of Hg co-adsorption, using photo emission. The interaction between Hg and molecular orthocarborane is weak and results in the formation of some small aggregates of Hg. This behavior is very different from alkali metals interaction with molecular carborane films and the interaction of Hg with semiconducting boron carbide films. Hg doping of semiconducting boron carbide may decrease the activation barrier for intrinsic carrier mobility, but does not significantly increase the number of carriers.