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Title: | Excitation of the ligand-to-metal charge transfer band induces electron tunnelling in azurin | Authors: | Baldacchini, Chiara Bizzarri, Anna Rita Cannistraro, Salvatore |
Journal: | APPLIED PHYSICS LETTERS | Issue Date: | 2014 | Abstract: | Optical excitation of azurin blue copper protein immobilized on indium-tin oxide, in resonance with its ligand-to-metal charge transfer absorption band, resulted in a light-induced current tunnelling within the protein milieu. The related electron transport rate is estimated to be about 105 s -1. A model based on resonant tunnelling through an azurin excited molecular state is proposed. The capability of controlling electron transfer processes through light pulses opens interesting perspectives for implementation of azurin in bio-nano-opto-electronic devices. © 2014 AIP Publishing LLC. |
URI: | http://hdl.handle.net/2067/42766 | ISSN: | 1077-3118 | DOI: | 10.1063/1.4867884 |
Appears in Collections: | A1. Articolo in rivista |
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