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


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,

May 31, 2016
August 3, 2016
November 4, 2016
femtosecond laser, CuO nanoparticles, reduction, solvent, micro-temperature sensor

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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Last updated on Dec. 13, 2018