Electrical molecular switch addressed by chemical stimuli.

  title={Electrical molecular switch addressed by chemical stimuli.},
  author={H Audi and Y. Viero and N Alwhaibi and Z. K. Chen and Maksym Iazykov and A Heynderickx and Fu Xiao and David Gu{\'e}rin and Christophe Krzeminski and Iain M. Grace and Colin J. Lambert and Olivier Siri and Dominique Vuillaume and St{\'e}phane Lenfant and H Klein},
We demonstrate that the conductance switching of benzo-bis(imidazole) molecules upon protonation depends on the lateral functional groups. The protonated H-substituted molecule shows a higher conductance than the neutral one (Gpro > Gneu), while the opposite (Gneu > Gpro) is observed for a molecule laterally functionalized by amino-phenyl groups. These results are demonstrated at various scale lengths: self-assembled monolayers, tiny nanodot-molecule junctions and single molecules. From ab… 

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