% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Huck:187298,
      author       = {Huck, C. and Poghossian, Arshak and Bäcker, M. and
                      Chaudhuri, S. and Zander, W. and Schubert, J. and Begoyan,
                      V. K. and Buniatyan, V. V. and Wagner, P. and Schöning, M.
                      J.},
      title        = {{C}apacitively coupled electrolyte-conductivity sensor
                      based on high-k material of barium strontium titanate},
      journal      = {Sensors and actuators / B},
      volume       = {198},
      issn         = {0925-4005},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-00970},
      pages        = {102 - 109},
      year         = {2014},
      abstract     = {A miniaturized capacitively coupled contactless
                      conductivity detection (C4D) sensor based on high-k
                      perovskite oxide of barium strontium titanate (BST) has been
                      implemented for the first time. The BST films (∼120 nm
                      thick) of Ba0.25Sr0.75TiO3 composition were prepared on a
                      p-Si-SiO2-Pt structure by pulsed laser deposition technique
                      using BST targets fabricated by the self-propagating
                      high-temperature synthesis method. The Pt electrodes were
                      buried into the SiO2 layer to obtain a planar structure. For
                      comparison, contact-mode electrolyte-conductivity (EC)
                      sensors without the protective BST layer were also
                      fabricated. To study the influence of the protective BST
                      layer, both sensors were characterized in electrolyte
                      solutions with various conductivities using two- and
                      four-electrode operation modes. The impedance spectra were
                      recorded in a frequency range from 1 Hz to 1 MHz. An
                      equivalent circuit of the C4D sensor is discussed as
                      well.Both, the EC and C4D sensor, demonstrate nearly
                      identical sensor characteristics. The obtained results
                      clearly show the benefits of the use of the BST-based C4D
                      sensor in a four-electrode configuration for contactless
                      conductivity measurements. A linear dependence between the
                      measured conductance and the electrolyte conductivity is
                      obtained in a wide range of electrolyte conductivity from
                      0.3 mS/cm to 50 mS/cm. Moreover, typical problems associated
                      with contact-mode EC detection such as the effect of
                      possible redox processes, contamination and fouling of
                      electrodes during continuous measurements can be minimized,
                      thus, enhancing the life-time of conductivity sensors
                      considerably.},
      cin          = {PGI-8 / JARA-FIT / PGI-9},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-8-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)PGI-9-20110106},
      pnm          = {423 - Sensorics and bioinspired systems (POF2-423)},
      pid          = {G:(DE-HGF)POF2-423},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000335580100016},
      doi          = {10.1016/j.snb.2014.02.103},
      url          = {https://juser.fz-juelich.de/record/187298},
}