期刊
NANOSCALE
卷 7, 期 45, 页码 18949-18955出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr04420k
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资金
- EPSRC [EP/H035184/1]
- EPSRC [EP/M005046/1, EP/K039687/1, EP/K007785/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K039687/1, EP/K007785/1, EP/H035184/1, EP/M005046/1] Funding Source: researchfish
The solid-state structures of organic charge transfer (CT) salts are critical in determining their mode of charge transport, and hence their unusual electrical properties, which range from semiconducting through metallic to superconducting. In contrast, using both theory and experiment, we show here that the conductance of metal vertical bar single molecule vertical bar metal junctions involving aromatic donor moieties (dialkyl-terthiophene, dialkylbenzene) increase by over an order of magnitude upon formation of charge transfer (CT) complexes with tetracyanoethylene (TCNE). This enhancement occurs because CT complex formation creates a new resonance in the transmission function, close to the metal contact Fermi energy, that is a signal of room-temperature quantum interference.
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