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Investigation of photoinduced molecular switching in a single monolayer by a displacement-current-measuring technique (1991)

Iwamoto, Mitsumasa ; Majima, Yutaka ; Naruse, Haruhiko ; [et al.]

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 95 (1991), S. 8561-8567

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: The optical molecular switching in single monolayers containing azobenzene derivatives at the air water interface due to photoinduced cis-trans isomerization was detected by using a displacement-current-measuring technique. The reversible displacement current generation was found to be sustained by the alternative applications of ultraviolet light and visible light, whereas, the current generation was never initiated by the successive irradiation of ultravilolet or visible light. In order to clarify the physical mechanism relevant to the displacement current generation, the optical molecular switching in single monolayers deposited on solid substrates was also examined by the displacement-current-measuring technique using a (indium tin oxide)/monolayer/air-gap/(indium tin oxide) structure. As a result, the displacement-current generation from single monolayers deposited on the solid substrates was found to be initiated in a similar manner as that from monolayers formed on the water surface. Finally, we concluded that the technique developed here will be used for a better understanding of the relationship between the structure and function of monolayers and will also be used in future molecular electronic technologies.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.461234

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Generation of Maxwell displacement current across an azobenzene monolayer by photoisomerization (1991)

Iwamoto, Mitsumasa ; Majima, Yutaka ; Naruse, Haruhiko ; [et al.]

[s.l.] : Nature Publishing Group

Nature 353 (1991), S. 645-647

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] According to Maxwell's electromagnetic field theory6, the total current flowing across a monolayer is the sum of the conduction current and displacement current. The conduction current is the steady-state current, and it is generated by applying a potential difference between two electrodes which ...