2016/01/02 by Andrea Vezzoli, Vezzoli, Andrea, Iain Grace +13
Engineering · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Molecular Junctions and Nanostructures #Organic Electronics and Photovoltaics #Quantum and electron transport phenomena
paper · pdf · doi:10.48550/arxiv.1601.00222
openalex publication_date 2016/01/02 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
The solid-state structures of organic charge transfer (CT) salts are critical\nin determining their mode of charge transport, and hence their unusual\nelectrical properties, which range from semiconducting through metallic to\nsuperconducting. In contrast, using both theory and experiment, we show here\nthat the conductance of metal | single molecule | metal junctions involving\naromatic donor moieties (dialkylterthiophene, dialkylbenzene) increase by over\nan order of magnitude upon formation of charge transfer (CT) complexes with\ntetracyanoethylene (TCNE). This enhancement occurs because CT complex formation\ncreates a new resonance in the transmission function, close to the metal\ncontact Fermi energy, that is a signal of room-temperature quantum\ninterference.\n