Effect of Heat Accumulation on Femtosecond Laser Reductive Sintering of Mixed CuO/NiO Nanoparticles

被引：26

作者：

Mizoshiri, Mizue ^{[1
]}

Nishitani, Kenta ^{[2
]}

Hata, Seiichi ^{[2
]}

机构：

[1] Nagaoka Univ Technol, Dept Mech Engn, 1603-1 Kamitomioka, Nagaoka, Niigata 9402188, Japan

[2] Nagoya Univ, Dept Micronano Mech Sci & Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan

来源：

MICROMACHINES | 2018年 / 9卷 / 06期

关键词：

direct writing; femtosecond laser; reductive sintering; thermoelectric film; Cu-Ni alloy; micropatterns; printing; ALLOY; FABRICATION;

D O I：

10.3390/mi9060264

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Direct laser-writing techniques have attracted attention for their use in two- and three-dimensional printing technologies. In this article, we report on a micropatterning process that uses femtosecond laser reductive sintering of mixed CuO/NiO nanoparticles. The writing speed, laser fluence, and incident total energy were varied to investigate the influence of heat accumulation on the micropatterns formed by these materials. Heat accumulation and the thermal history of the laser irradiation process significantly affected the material composition and the thermoelectric properties of the fabricated micropatterns. Short laser irradiation durations and high laser fluences decrease the amount of metal oxide in the micropatterns. Selective fabrication of p-type and n-type thermoelectric micropatterns was demonstrated to be possible with control of the reduction and reoxidization reactions through the control of writing speed and total irradiation energy.

引用

页数：10

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