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Langmuir-Blodgett (LB) films, constructed by transferring mono-layers floating on water surface to a solid substrate, are expected to be widely applied to molecular electronic and bioelectronic devices because of characteristics such as the thickness and molecular arrangement being controllable at the molecular level. The accompanying figure shows a functional LB film developed by the Institute. This film exhibits changes in conductivity associated with the conductive part (rectangular area) as a result of structural changes in the photo-responsive part caused by the irradiation of ultraviolet and visible light. One focus of current studies is fabricating a new conductivity-switching device by utilizing this phenomenon.
The conductivity of LB film can be switched by the irradiation of light. |