Abstract
Many applications require delivery of small quantities of functional materials into locations on a substrate in the form of liquid solution. Consequently, interest in nongraphical inkjet printing is growing. In addition, higher resolution for printing flexible electronics is becoming more critical to enhance the performance of printing electronics. Since the resolution of inkjet process is limited by the nozzle size and the statistical variation of droplet flight and spreading phenomena, hybrid inkjet printing has emerged as an attractive processing method. In this work, surface monolayer protected gold nanoparticle was printed in a liquid solution form and cured by laser irradiation to fabricate electrically conductive microlines on glass or polymer substrate at a reduced temperature. Continuous laser curing enabled local heating and the morphology could be controlled as well. Thermal penetration into the substrate could be minimized by using pulsed laser beam. Nanoparticle film was effectively removed by applying femtosecond laser, so that small feature size was obtained. Printing on a heated substrate has advantages over room temperature printing. The solvent evaporates soon after contact, so that a thick layer can be deposited with high jetting frequency. The rapid liquid evaporation also eliminated uneven wetting problems and the smaller feature size was obtained.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | J. Fieret, P.R. Herman, T. Okada, C.B. Arnold, F.G. Bachmann, W. Hoving, K. Washio, Y. Lu, D.B. Geohegan |
| Pages | 97-104 |
| Number of pages | 8 |
| Volume | 5713 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Photon Processing in Microelectronics and Photonics IV - San Jose, CA, United States Duration: 2005 Jan 24 → 2005 Jan 27 |
Other
| Other | Photon Processing in Microelectronics and Photonics IV |
|---|---|
| Country | United States |
| City | San Jose, CA |
| Period | 05/1/24 → 05/1/27 |
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Keywords
- Ablation
- Droplet
- Evaporation
- Flexible electronics
- Gold
- Impact
- Inkjet
- Laser
- Nanoparticle
- Sinter
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Laser based hybrid inkjet printing of nanoink for flexible electronics. / Ko, Seung Hwan; Chung, Jaewon; Choi, Yeonho; Grigoropoulos, Costas P.; Bieri, Nicole R.; Choi, Tae Youl; Dockendorf, Cedric; Poulikakos, Dimos.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / J. Fieret; P.R. Herman; T. Okada; C.B. Arnold; F.G. Bachmann; W. Hoving; K. Washio; Y. Lu; D.B. Geohegan. Vol. 5713 2005. p. 97-104 17.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Laser based hybrid inkjet printing of nanoink for flexible electronics
AU - Ko, Seung Hwan
AU - Chung, Jaewon
AU - Choi, Yeonho
AU - Grigoropoulos, Costas P.
AU - Bieri, Nicole R.
AU - Choi, Tae Youl
AU - Dockendorf, Cedric
AU - Poulikakos, Dimos
PY - 2005
Y1 - 2005
N2 - Many applications require delivery of small quantities of functional materials into locations on a substrate in the form of liquid solution. Consequently, interest in nongraphical inkjet printing is growing. In addition, higher resolution for printing flexible electronics is becoming more critical to enhance the performance of printing electronics. Since the resolution of inkjet process is limited by the nozzle size and the statistical variation of droplet flight and spreading phenomena, hybrid inkjet printing has emerged as an attractive processing method. In this work, surface monolayer protected gold nanoparticle was printed in a liquid solution form and cured by laser irradiation to fabricate electrically conductive microlines on glass or polymer substrate at a reduced temperature. Continuous laser curing enabled local heating and the morphology could be controlled as well. Thermal penetration into the substrate could be minimized by using pulsed laser beam. Nanoparticle film was effectively removed by applying femtosecond laser, so that small feature size was obtained. Printing on a heated substrate has advantages over room temperature printing. The solvent evaporates soon after contact, so that a thick layer can be deposited with high jetting frequency. The rapid liquid evaporation also eliminated uneven wetting problems and the smaller feature size was obtained.
AB - Many applications require delivery of small quantities of functional materials into locations on a substrate in the form of liquid solution. Consequently, interest in nongraphical inkjet printing is growing. In addition, higher resolution for printing flexible electronics is becoming more critical to enhance the performance of printing electronics. Since the resolution of inkjet process is limited by the nozzle size and the statistical variation of droplet flight and spreading phenomena, hybrid inkjet printing has emerged as an attractive processing method. In this work, surface monolayer protected gold nanoparticle was printed in a liquid solution form and cured by laser irradiation to fabricate electrically conductive microlines on glass or polymer substrate at a reduced temperature. Continuous laser curing enabled local heating and the morphology could be controlled as well. Thermal penetration into the substrate could be minimized by using pulsed laser beam. Nanoparticle film was effectively removed by applying femtosecond laser, so that small feature size was obtained. Printing on a heated substrate has advantages over room temperature printing. The solvent evaporates soon after contact, so that a thick layer can be deposited with high jetting frequency. The rapid liquid evaporation also eliminated uneven wetting problems and the smaller feature size was obtained.
KW - Ablation
KW - Droplet
KW - Evaporation
KW - Flexible electronics
KW - Gold
KW - Impact
KW - Inkjet
KW - Laser
KW - Nanoparticle
KW - Sinter
UR - http://www.scopus.com/inward/record.url?scp=23744510913&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23744510913&partnerID=8YFLogxK
U2 - 10.1117/12.591914
DO - 10.1117/12.591914
M3 - Conference contribution
AN - SCOPUS:23744510913
VL - 5713
SP - 97
EP - 104
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Fieret, J.
A2 - Herman, P.R.
A2 - Okada, T.
A2 - Arnold, C.B.
A2 - Bachmann, F.G.
A2 - Hoving, W.
A2 - Washio, K.
A2 - Lu, Y.
A2 - Geohegan, D.B.
ER -