High On−Off Conductance Switching Ratio in Optically-Driven Self-Assembled Conjugated Molecular Systems
High On−Off Conductance Switching Ratio in Optically-Driven Self-Assembled Conjugated Molecular Systems
A new azobenzene-thiophene molecular switch is designed, synthesized, and used to form self-assembled monolayers (SAM) on gold. An "on/off" conductance ratio up to 7 x 10(3) (with an average value of 1.5 x 10(3)) is reported. The "on" conductance state is clearly identified to the cis isomer of the azobenzene …