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@ARTICLE{Medhat:903791,
      author       = {Medhat, Ahmed and Salah, Dina and Boichuk, Nazarii and
                      Hassan, Ibrahim and Vitusevich, Svetlana and Kasry, Amal},
      title        = {{G}raphene {N}anoplatelet–{A}u {N}anoparticle {H}ybrid as
                      a {C}apacitive-{M}etal–{O}xide–{S}emiconductor p{H}
                      {S}ensor},
      journal      = {ACS applied electronic materials},
      volume       = {3},
      number       = {1},
      issn         = {2637-6113},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2021-05426},
      pages        = {430 - 436},
      year         = {2021},
      note         = {Kein Post-print vorhanden},
      abstract     = {pH sensors, with high sensitivity, durability, and low
                      cost, are considered to be essential tools in several
                      applications such as laboratory experiments, water quality,
                      agriculture, and healthcare. Because of their unique
                      properties, carbon allotropes have attracted a lot of
                      attention during the last decade to be utilized in several
                      applications, in which pH sensing is one of them. In this
                      work, a hybrid film of graphene nanoplatelets (GPs) and gold
                      nanoparticles (GNPs), where the GNPs are embedded in the GP
                      layer, was used as an active layer in an electronic pH senor
                      based on a capacitive metal oxide semiconductor.
                      Capacitance–voltage measurements have shown a change in
                      the flatband voltage with changing the applied pH. The
                      sensitivity of the GP–Au nanoparticle hybrid (GAH) film
                      has been enhanced by a factor of $26.7\%$ compared to the GP
                      film. We refer the higher sensitivity to the increase in the
                      surface potential of the GAH, which became n-doped by the Au
                      nanoparticles, resulting in a change of the Fermi level of
                      the GP layer. This sensor is easy to fabricate and
                      demonstrates sensitivity that is higher than previously
                      reported electronic pH sensitivities using different
                      configurations.},
      cin          = {IBI-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IBI-3-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000613935300042},
      doi          = {10.1021/acsaelm.0c00968},
      url          = {https://juser.fz-juelich.de/record/903791},
}