Controlling single-molecule junction conductance by molecular interactions.

ABSTRACT: For the rational design of single-molecular electronic devices, it is essential to understand environmental effects on the electronic properties of a working molecule. Here we investigate the impact of molecular interactions on the single-molecule conductance by accurately positioning individual molecules on the electrode. To achieve reproducible and precise conductivity measurements, we utilize relatively weak π-bonding between a phenoxy molecule and a STM-tip to form and cleave one contact to the molecule. The anchoring to the other electrode is kept stable using a chalcogen atom with strong bonding to a Cu(110) substrate. These non-destructive measurements permit us to investigate the variation in single-molecule conductance under different but controlled environmental conditions. Combi

SUBMITTER: Kitaguchi Y 

PROVIDER: S-EPMC4488765 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature