Abstract

Self-assembled mono- and multilayer films have been formed via selective ionic interactions. 1 Two types of molecule have been used, straight chain mercaptoalkanoic acids and those containing chromophores : HS(CH 2 ) 15 COOH and HS(CH 2 ) 11 O-C 8 H 4 -SO 2 (CH 2 ) 5 COOH. To better understand the formation process, XPS studies have been performed. Models are presented for various possible orientational structures, and evidence for a preferred orientation is given. The oxidation state of the copper ions within the films has been unambiguously determined.

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