Patterning microconductor using nanosecond laser ablation of metal nanoparticle film

Sewoon Han, Taewong Lim, Jaewon Chung, Seung H. Ko, Costas P. Grigoropoulos, Dongjo Kim, Jooho Moon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ablation of metal nanoparticle film using frequency doubled Nd:YAG nanosecond laser is explored to apply for trimming drop on demand (DOD) Inkjet printed electrical micro-conductor for flexible electronics. While elevated rim structure due to expulsion of molten pool is observed in sintered nanoparticle film, the ablation of unsintered nanoparticle film results in a Gaussian-shaped ablation profile, so that a clean precise patterning is possible. In addition, the ablation fluence threshold of unsintered metal nanoparticle film is at least ten times lower than that of a corresponding metal film. Therefore, by using nanosecond laser ablation, inkjet printed metal nanoparticles compatible for flexible polymer can be patterned efficiently with a high resolution.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6458
DOIs
Publication statusPublished - 2007 May 21
EventPhoton Processing in Microelectronics and Photonics VI - San Jose, CA, United States
Duration: 2007 Jan 222007 Jan 25

Other

OtherPhoton Processing in Microelectronics and Photonics VI
CountryUnited States
CitySan Jose, CA
Period07/1/2207/1/25

Fingerprint

Metal nanoparticles
Laser ablation
laser ablation
Ablation
ablation
nanoparticles
metals
Nanoparticles
Flexible electronics
expulsion
Trimming
rims
metal films
Molten materials
YAG lasers
fluence
conductors
thresholds
Lasers
high resolution

Keywords

  • Flexible electronics
  • Gold
  • Inkjet printing
  • Nanoparticle
  • Nanosecond laser ablation
  • Silver
  • Sintering
  • Surface monolayer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Han, S., Lim, T., Chung, J., Ko, S. H., Grigoropoulos, C. P., Kim, D., & Moon, J. (2007). Patterning microconductor using nanosecond laser ablation of metal nanoparticle film. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6458). [645811] https://doi.org/10.1117/12.701533

Patterning microconductor using nanosecond laser ablation of metal nanoparticle film. / Han, Sewoon; Lim, Taewong; Chung, Jaewon; Ko, Seung H.; Grigoropoulos, Costas P.; Kim, Dongjo; Moon, Jooho.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6458 2007. 645811.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Han, S, Lim, T, Chung, J, Ko, SH, Grigoropoulos, CP, Kim, D & Moon, J 2007, Patterning microconductor using nanosecond laser ablation of metal nanoparticle film. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6458, 645811, Photon Processing in Microelectronics and Photonics VI, San Jose, CA, United States, 07/1/22. https://doi.org/10.1117/12.701533
Han S, Lim T, Chung J, Ko SH, Grigoropoulos CP, Kim D et al. Patterning microconductor using nanosecond laser ablation of metal nanoparticle film. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6458. 2007. 645811 https://doi.org/10.1117/12.701533
Han, Sewoon ; Lim, Taewong ; Chung, Jaewon ; Ko, Seung H. ; Grigoropoulos, Costas P. ; Kim, Dongjo ; Moon, Jooho. / Patterning microconductor using nanosecond laser ablation of metal nanoparticle film. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6458 2007.
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