Effect of Surface Morphology of a Gold Substrate on Photocurrent Efficiency at a Gold Electrode Modified with a Self-Assembled Monolayer of a Porphyrin–Ferrocene–Thiol Linked Molecule

Autor:	Masatoshi Yanagida, Toshihiro Kondo, Xue-Qun Zhang, Kohei Uosaki
Rok vydání:	2000
Předmět:	Photocurrent chemistry.chemical_compound Ferrocene Chemistry Monolayer Electrode Surface roughness Analytical chemistry Substrate (chemistry) Self-assembled monolayer General Chemistry Photochemistry Porphyrin
Zdroj:	Chemistry Letters. 29:964-965
ISSN:	1348-0715 0366-7022
DOI:	10.1246/cl.2000.964
Popis:	The effect of the surface roughness on the characteristics of self-assembled monolayers (SAMs) was quantitatively examined by measuring the photocurrent efficiency at a gold electrode modified with a SAM of a porphyrin–ferrocene–thiol linked molecule as a function of the surface roughness. The photocurrent efficiency was higher for the flatter substrate. This result confirms the importance of the substrate’s surface roughness to achieve the ordered arrangement of the functional moieties of the SAM, i.e., effective control of the electron/energy transfer.
Databáze:	OpenAIRE
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