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Keywords:

  • flexible electronics;
  • paper;
  • conductive ink;
  • rollerball pen
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Pen-on-paper flexible electronics are fabricated using a conductive silver ink-filled rollerball pen. This approach provides a low-cost, portable route for fabricating conductive text, electronic art, interconnects for light emitting diode (LED) arrays, and three-dimensional (3D) antennas on paper.