Fluorescence Probing of Self-Assembled Monolayer with Terphenyl-Derivatized Disulfides

概要

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The formation processes of and molecular ordering in self-assembled monolayers were investigated by fluorescence probing with $p$-terphenyl chromophores binding to disulfides at the $o$- or $p$-positions. In mixtures with dodecanethiol, the derivatized disulfides formed ordered monolayers. As compared with the broad monotonic fluorescence spectra in solutions, their emission bands were split into distinct peaks upon chemisorption on gold substrates due to intermolecular interactions between adjacent terphenyl groups. Their emission peak positions were interpreted in terms of the exciton coupling of various dimeric terphenyl configurations in the monolayers depending on the $o$- and $p$-isomeric structures.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2003-11-15