Title

Adsorption binding-energy variation resulting from substrate size effects

Document Type

Article

Publication Date

January 1986

Abstract

Results of a computer investigation of the influence of crystallite finite lateral size and thickness upon the binding-energy heterogeneity of typical physisorption substrates are reported. Size effects are shown to contribute large tails to the binding-energy distribution. Calculations with the model substrate (100-Å typical surface coherence length) show that 20%-30% of the binding sites have energies which differ from the average binding energy by greater than 0.2%. Size effects alone, however, are insufficient to explain the distribution peak widths of real substrates.

Journal

Physical Review B

Volume

34

Issue

11

First Page

8118

Last Page

8121

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