Laser-assisted direct ink writing of planar and 3D metal architectures.

نویسندگان

  • Mark A Skylar-Scott
  • Suman Gunasekaran
  • Jennifer A Lewis
چکیده

The ability to pattern planar and freestanding 3D metallic architectures at the microscale would enable myriad applications, including flexible electronics, displays, sensors, and electrically small antennas. A 3D printing method is introduced that combines direct ink writing with a focused laser that locally anneals printed metallic features "on-the-fly." To optimize the nozzle-to-laser separation distance, the heat transfer along the printed silver wire is modeled as a function of printing speed, laser intensity, and pulse duration. Laser-assisted direct ink writing is used to pattern highly conductive, ductile metallic interconnects, springs, and freestanding spiral architectures on flexible and rigid substrates.

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عنوان ژورنال:
  • Proceedings of the National Academy of Sciences of the United States of America

دوره 113 22  شماره 

صفحات  -

تاریخ انتشار 2016