Pico- to nanosecond pulsed laser-induced forward transfer (LIFT) of silver nanoparticle inks

Pico- to nanosecond pulsed laser-induced forward transfer (LIFT) of silver nanoparticle inks: a comparative study

Miksys, J.
Arutinov, G.
Römer, G.R.B.E.

2019

Silver nanoparticle inks are among the key functional materials used in printed electronics. Depositing it by laser-induced forward transfer remains a challenging task because the non-linear rheological nature of these inks narrows the range of the laser processing parameters. Understanding, therefore, the influence of the laser parameters on the ejection dynamics and deposition quality is of critical importance. The influence of the laser pulse duration from pico- to nanosecond-laser-induced jet dynamics was investigated using time-resolved shadowgraphy imaging. Jet speed and surface area analyses showed that in the lower laser fluence level range, picosecond pulses induce higher surface area ejections which propagate at higher velocities. As the laser fluence levels were increased, the difference in jet velocity and surface area evolutions narrows. Deposition analysis showed a similar behavior with lower transfer thresholds and larger depositions at lower fluence range when picosecond-laser pulses were used.

Deposition
Functional materials
Laser beam effects
Laser pulses
Mass transfer
Metal nanoparticles
Silver nanoparticles
Ultrafast lasers
Comparative studies
Laser induced forward transfer
Laser processing parameters
Laser pulse duration
Nanosecond lasers
Nanosecond pulsed laser
Printed electronics
Surface area analysis
Pulsed lasers

http://resolver.tudelft.nl/uuid:6b7db9ab-b1bd-4e64-83ef-f7f6d74f4510

https://doi.org/10.1007/s00339-019-3085-8

870198

Springer Verlag

0947-8396

Applied Physics A: Materials Science and Processing, 125 (125)

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