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IJAT Vol.10 No.6 pp. 934-940
doi: 10.20965/ijat.2016.p0934
(2016)

Paper:

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Effect of Different Solvents on Cu Micropatterns Formed via Femtosecond Laser Reduction Patterning

Mizue Mizoshiri†, Shun Arakane, Junpei Sakurai, and Seiichi Hata

Nagoya University
Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

†Corresponding author,

Received:
May 31, 2016
Accepted:
August 3, 2016
Published:
November 4, 2016
Creative Commons License
Keywords:
femtosecond laser, CuO nanoparticles, reduction, solvent, micro-temperature sensor
Abstract
We investigated the effect of different solvents on the Cu micropatterns formed via femtosecond laser reduction patterning. Solvents such as ethylene glycol, 2-propanol, and glycerol were mixed with CuO nanoparticles and polyvinylpyrrolidone. The degree of reduction and the resistivity of the fabricated micropatterns depended on the solvent. Glycerol was the most effective reducing agent. This solution was used to fabricate Cu/Cu2O composite micro-temperature sensors. Cu-rich electrodes and Cu2O-rich sensors were selectively formed by controlling the laser scanning speed at 5 mm/s and 0.5 mm/s, respectively, when the pulse energy was 0.53 nJ. The temperature sensor exhibited a negative temperature coefficient of the resistance, which was consistent with the value for Cu2O.
Cite this article as:
M. Mizoshiri, S. Arakane, J. Sakurai, and S. Hata, “Effect of Different Solvents on Cu Micropatterns Formed via Femtosecond Laser Reduction Patterning,” Int. J. Automation Technol., Vol.10 No.6, pp. 934-940, 2016.
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