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@ARTICLE{Rosen:837516,
      author       = {Rosen, Yitzchak S. and Yakushenko, Alexey and
                      Offenhäusser, Andreas and Magdassi, Shlomo},
      title        = {{S}elf-{R}educing {C}opper {P}recursor {I}nks and
                      {P}hotonic {A}dditive {Y}ield {C}onductive {P}atterns under
                      {I}ntense {P}ulsed {L}ight},
      journal      = {ACS omega},
      volume       = {2},
      number       = {2},
      issn         = {2470-1343},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2017-06412},
      pages        = {573 - 581},
      year         = {2017},
      abstract     = {Printing conducting copper interconnections on plastic
                      substrates is of growing interest in the field of printed
                      electronics. Photonic curing of copper inks with intense
                      pulsed light (IPL) is a promising process as it is very fast
                      and thus can be incorporated in roll-to-roll production. We
                      report on using IPL for obtaining conductive patterns from
                      inks composed of submicron particles of copper formate, a
                      copper precursor that has a self-reduction property.
                      Decomposition of copper formate can be performed by IPL and
                      is affected both by the mode of energy application and the
                      properties of the printed precursor layer. The energy
                      application mode was controlled by altering three pulse
                      parameters: duration, intensity, and repetitions at 1 Hz. As
                      the decomposition results from energy transfer via light
                      absorption, carbon nanotubes (CNTs) were added to the ink to
                      increase the absorbance. We show that there is a strict set
                      of IPL parameters necessary to obtain conductive copper
                      patterns. Finally, we show that by adding as little as 0.5
                      wt $\%$ single-wall CNTs to the ink the absorptance was
                      enhanced by about $50\%$ and the threshold energy required
                      to obtain a conductive pattern decreased by $∼25\%.$ These
                      results have major implications for tailoring inks intended
                      for IPL processing.},
      cin          = {ICS-8},
      ddc          = {540},
      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},
      UT           = {WOS:000395863300024},
      doi          = {10.1021/acsomega.6b00478},
      url          = {https://juser.fz-juelich.de/record/837516},
}