Laser jetting of femto-liter metal droplets for high resolution 3D printed structures

M. Zenou*, A. Sa'ar, Z. Kotler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

89 Scopus citations

Abstract

Laser induced forward transfer (LIFT) is employed in a special, high accuracy jetting regime, by adequately matching the sub-nanosecond pulse duration to the metal donor layer thickness. Under such conditions, an effective solid nozzle is formed, providing stability and directionality to the femto-liter droplets which are printed from a large gap in excess of 400μm. We illustrate the wide applicability of this method by printing several 3D metal objects. First, very high aspect ratio (A/R>20), micron scale, copper pillars in various configuration, upright and arbitrarily bent, then a micron scale 3D object composed of gold and copper. Such a digital printing method could serve the generation of complex, multi-material, micron-scale, 3D materials and novel structures.

Original languageAmerican English
Article number17265
JournalScientific Reports
Volume5
DOIs
StatePublished - 25 Nov 2015

Bibliographical note

Publisher Copyright:
© 2015, Nature Publishing Group. All rights reserved.

Fingerprint

Dive into the research topics of 'Laser jetting of femto-liter metal droplets for high resolution 3D printed structures'. Together they form a unique fingerprint.

Cite this