Molecular electronic switch using Carbon nanotube electrodes

We propose a stable molecular electronic switch design which contains a double-benzene molecule bridging a pair of CNT electrodes. The effect of different coupling between the molecule and electrodes on the switch function of the system is studied by use of tight-binding Green function approach. The system keeps a stable switch function for a large range of the coupling distance, as long as the π coupling between the molecule and the CNT remains.