Self-Reducible Cu Nanoparticles for Conductive Inks
Self-Reducible Cu Nanoparticles for Conductive Inks
复制标题
用于导电油墨的自还原铜纳米颗粒
DOI：
10.1021/acs.iecr.7b04248
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发表时间：
2018-02-21
影响因子：
4.2
通讯作者：
Wang, Tao
中科院分区：
文献类型：
--
作者：
Dai, Xiaofeng;Xu, Wen;Wang, Tao
铜纳米颗粒（Cu NPs）由于其低价格、高导电性和高抗电迁移性而成为用于导电油墨的潜在材料。然而，铜纳米颗粒在空气中容易被氧化，这对导电性是致命的。在这项工作中，我们报告的自还原的铜纳米粒子，这是通过热分解的甲酸铜（Cuf）使用油胺（OAM）作为络合配体和稳定剂合成的。虽然颗粒表面在空气中部分氧化为Cu2O，但由于吸附在Cu NPs上的OAM分解释放出H2，因此氧化亚铜在烧结过程中可以还原为铜。这种无需额外还原剂帮助的自还原能力使得Cu NP成为用于导电油墨的有前途的材料。证明了用所制备的Cu纳米颗粒配制导电油墨的可行性。
Copper nanoparticles (Cu NPs) are a potential material for conductive inks because of their low price, high conductivity, and high electromigration resistance. However, Cu NPs are prone to be oxidized in air, which is lethal to conductivity. In this work, we report on the self-reduction of Cu NPs which are synthesized by the thermal decomposition of copper formate (Cuf) using oleylamine (OAM) as the complexing ligand and stabilizing agent. Although the particle surface partially oxidized to Cu2O in air, the cuprous oxide could be reduced to copper during sintering, because of the release of H2 through the decomposition of OAM adsorbed on Cu NPs. This self-reduction ability without the help of additional reduction agent makes the Cu NPs a promising material for conductive inks. The feasibility to formulate conductive ink with the prepared Cu NPs is demonstrated.