% 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{Ayyildiz:857767,
      author       = {Ayyildiz, Mehmet and Scaraggi, Michele and Sirin, Omer and
                      Basdogan, Cagatay and Persson, Bo},
      title        = {{C}ontact mechanics between the human finger and a
                      touchscreen under electroadhesion},
      journal      = {Proceedings of the National Academy of Sciences of the
                      United States of America},
      volume       = {115},
      number       = {50},
      issn         = {0027-8424},
      address      = {Washington, DC},
      publisher    = {National Acad. of Sciences},
      reportid     = {FZJ-2018-06735},
      pages        = {12668 - 12673},
      year         = {2018},
      abstract     = {The understanding and control of human skin contact against
                      technological substrates is the key aspect behind the design
                      of several electromechanical devices. Among these, surface
                      haptic displays that modulate the friction between the human
                      finger and touch surface are emerging as user interfaces.
                      One such modulation can be achieved by applying an
                      alternating voltage to the conducting layer of a capacitive
                      touchscreen to control electroadhesion between its surface
                      and the finger pad. However, the nature of the contact
                      interactions between the fingertip and the touchscreen under
                      electroadhesion and the effects of confined material
                      properties, such as layering and inelastic deformation of
                      the stratum corneum, on the friction force are not
                      completely understood yet. Here, we use a mean field theory
                      based on multiscale contact mechanics to investigate the
                      effect of electroadhesion on sliding friction and the
                      dependency of the finger–touchscreen interaction on the
                      applied voltage and other physical parameters. We present
                      experimental results on how the friction between a finger
                      and a touchscreen depends on the electrostatic attraction
                      between them. The proposed model is successfully validated
                      against full-scale (but computationally demanding) contact
                      mechanics simulations and the experimental data. Our study
                      shows that electroadhesion causes an increase in the real
                      contact area at the microscopic level, leading to an
                      increase in the electrovibrating tangential frictional
                      force. We find that it should be possible to further augment
                      the friction force, and thus the human tactile sensing, by
                      using a thinner insulating film on the touchscreen than used
                      in current devices.},
      cin          = {PGI-1 / IAS-1 / JARA-FIT / JARA-HPC},
      ddc          = {500},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30482858},
      UT           = {WOS:000452866000058},
      doi          = {10.1073/pnas.1811750115},
      url          = {https://juser.fz-juelich.de/record/857767},
}