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@ARTICLE{Zhang:842606,
      author       = {Zhang, P. and Bousack, Herbert and Dai, Y. and
                      Offenhäusser, A. and Mayer, D.},
      title        = {{S}hell-binary nanoparticle materials with variable
                      electrical and electro-mechanical properties},
      journal      = {Nanoscale},
      volume       = {10},
      number       = {3},
      issn         = {2040-3372},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2018-00819},
      pages        = {992 - 1003},
      year         = {2018},
      abstract     = {Nanoparticle (NP) materials with the capability to adjust
                      their electrical and electro-mechanical properties
                      facilitate applications in strain sensing technology.
                      Traditional NP materials based on single component NPs lack
                      a systematic and effective means of tuning their electrical
                      and electro-mechanical properties. Here, we report on a new
                      type of shell-binary NP material fabricated by self-assembly
                      with either homogeneous or heterogeneous arrangements of
                      NPs. Variable electrical and electro-mechanical properties
                      were obtained for both materials. We show that the
                      electrical and electro-mechanical properties of these
                      shell-binary NP materials are highly tunable and strongly
                      affected by the NP species as well as their corresponding
                      volume fraction ratio. The conductivity and the gauge factor
                      of these shell-binary NP materials can be altered by about
                      five and two orders of magnitude, respectively. These
                      shell-binary NP materials with different arrangements of NPs
                      also demonstrate different volume fraction dependent
                      electro-mechanical properties. The shell-binary NP materials
                      with a heterogeneous arrangement of NPs exhibit a peaking of
                      the sensitivity at medium mixing ratios, which arises from
                      the aggregation induced local strain enhancement. Studies on
                      the electron transport regimes and micro-morphologies of
                      these shell-binary NP materials revealed the different
                      mechanisms accounting for the variable electrical and
                      electro-mechanical properties. A model based on effective
                      medium theory is used to describe the electrical and
                      electro-mechanical properties of such shell-binary
                      nanomaterials and shows an excellent match with experiment
                      data. These shell-binary NP materials possess great
                      potential applications in high-performance strain sensing
                      technology due to their variable electrical and
                      electro-mechanical properties.},
      cin          = {ICS-8},
      ddc          = {600},
      cid          = {I:(DE-Juel1)ICS-8-20110106},
      pnm          = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29265122},
      UT           = {WOS:000423259000013},
      doi          = {10.1039/C7NR07912E},
      url          = {https://juser.fz-juelich.de/record/842606},
}