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@ARTICLE{Li:201028,
      author       = {Li, Zhihai and Liu, Yaqing and Mertens, Stijn F. L. and
                      Pobelov, Ilya V. and Wandlowski, Thomas},
      title        = {{F}rom {R}edox {G}ating to {Q}uantized {C}harging},
      journal      = {Journal of the American Chemical Society},
      volume       = {132},
      number       = {23},
      issn         = {1520-5126},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2015-03338},
      pages        = {8187 - 8193},
      year         = {2010},
      abstract     = {Electron transport characteristics were studied in redox
                      molecule-modified tunneling junctions
                      Au(111)|6-thiohexanoylferrocene (Fc6)|solution gap|Au STM
                      tip in the absence and in the presence of gold nanoclusters
                      employing an electrochemical STM setup. We observed
                      transistor- and diode-like current−voltage responses
                      accounted for by the redox process at the ferrocene moiety.
                      We demonstrate that the reorganization energy of the redox
                      site decreases with decreasing gap size. As a unique new
                      feature, we discovered the formation of uniform (size ∼2.4
                      nm) gold nanoparticles, upon multiple oxidation/reduction
                      cycles of the Fc6 adlayer. The immobilized nanoparticles
                      modify the electron transport response of the Fc6 tunneling
                      junctions dramatically. On top of embedded single
                      nanoparticles we observed single-electron Coulomb charging
                      signatures with up to seven narrow and equally spaced energy
                      states upon electrochemical gating. Our results demonstrate
                      the power of the electrochemical approach in molecular
                      electronics and offer a new perspective toward two-state and
                      multistate electronic switching in condensed media at room
                      temperature.},
      cin          = {PGI-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {422 - Spin-based and quantum information (POF2-422)},
      pid          = {G:(DE-HGF)POF2-422},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000278717700068},
      doi          = {10.1021/ja102754n},
      url          = {https://juser.fz-juelich.de/record/201028},
}