Gold surfaces, chromophores

Kriegisch V, Lambert C (2005) Self-Assembled Monolayers of Chromophores on Gold Surfaces. 258 257-313... 

As for Raman spectroscopy one may expect resonance Raman effect and/or surface-enhanced Raman scattering (SERS). By using these effects, the Raman spectrum of a monolayer film may be enhanced by 103-106. Resonance Raman spectroscopy is useful for exploring the electronic structure of monolayers with a chromophore and SERS technique is applied to study structure, orientation, and interactions of monolayers on a silver or gold surface. 

Self-Assembled Monolayers of Chromophores on Gold Surfaces... 

The reconstitution reaction of heme derivatives with apo-protein on gold surfaces is a convenient method for fabricating well-ordered protein mono-layers on solid substrates as a first step for the structural analysis of proteins and also for device applications. Kobayashi and coworkers synthesised thi-olated heme compounds to investigate the self-assembly behaviour on gold (Fig. 22) [119,168]. UV- and IRRAS-spectroscopy indicate that the tilt angle of the adsorbed molecules depends on the alkyl chain length between the surface and the chromophore. 

Fig. 29 SAMs containing pyrene chromophores 19 pyrene bound to the gold surface via a tripodal anchor group [122,187] 20 mixed SAM of pyrene and porphyrin [27,147] 21 multilayer system consisting of pyrene and Cu(ll)-complexes [188]...

Other chromophores are helical peptides with N-ethylcarbazolyl groups for photo current generation with tilt angles of the helices to the surface normal of about 40 (Fig. 32, 26) [118] or mixed-valence iron-ruthenium complexes for quantum dot cells (QCA) which possess an isolated, tethered structure on the gold surface, as indicated by CV measurements (Fig. 32,27) [200]. 

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