Azobenzenes as Light-Controlled Molecular Electronic Switches in Nanoscale Metal−Molecule−Metal Junctions
Journal of the American Chemical Society2008Vol. 130(29), pp. 9192–9193
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Abstract
Self-assembled monolayers (SAMs) of azo-biphenyl derivatives AZO1 have been ssembled on gold surfaces and electrocally tested under irradiation. Comparable maximal cis/trans ratios of ca. 0.9 have been observed in all cases upon irradiation at λ = 370 nm and λ = 360 nm. The current values measured by STM on the two isomers indicate a largere current for the cis isomer respet to the trans isomer, in agreement with the theory.
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