Cyclic Conductance Switching in Networks of Redox-Active Molecular Junctions
Author(s):
Jianhui Liao, Jon S. Agustsson, Songmei Wu, Christian Schönenberger, Michel Calame, Yann Leroux, Marcel Mayor, Olivier Jeannin, Ying-Fen Ran, Shi-Xia Liu, Silvio Decurtins
Journal:
Nano Letters
Year:
2010
Volume:
10
Pages
751-1102
DOI:
10.1021/nl902000e
Abstract:
Redox-active dithiolated tetrathiafulvalene derivatives (TTFdT) were inserted in two-dimensional nanoparticle arrays to build interlinked networks of molecular junctions. Upon oxidation of the TTFdT to the dication state, we observed a conductance increase of the networks by up to 1 order of magnitude. Successive oxidation and reduction cycles demonstrated a clear switching behavior of the molecular junction conductance. These results show the potential of interlinked nanoparticle arrays as chemical sensors.