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- W2977882805 abstract "Photochemical reactions in biology as well as optoelectronic applications are driven by optical excitation of charge carriers. In this work the light-induced electron motion through nanoscale objects in the limits of different electron transport models is studied experimentally. A gold coated scanning near-field optical microscope tip is employed in two experimental configurations. First, photosynthetic protein complexes (PS I) which can be considered as model systems for optically driven charge separation were investigated. Individually contacted single PS I revealed a photocurrent of 10 pA under laser illumination. In a second approach electrons in metal-dielectric-metal nanojunctions were optically excited and steered by ultrashort laser pulses. The results show that the collective electron motion within a dielectric can be controlled by the optical field and generates a macroscopically detectable current." @default.
- W2977882805 created "2019-10-10" @default.
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- W2977882805 date "2012-01-01" @default.
- W2977882805 modified "2023-09-24" @default.
- W2977882805 title "Light-induced electron motion in nanojunctions" @default.
- W2977882805 hasPublicationYear "2012" @default.
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