Magdassi Shlomo, Grouchko Michael, Kamyshny Alexander
Casali Institute of Applied Chemistry, the Institute of Chemistry, the Hebrew University of Jerusalem, Jerusalem 91904, Israel.
Materials (Basel). 2010 Sep 8;3(9):4626-4638. doi: 10.3390/ma3094626.
In the past few years, the synthesis of Cu nanoparticles has attracted much attention because of its huge potential for replacing expensive nano silver inks utilized in conductive printing. A major problem in utilizing these copper nanoparticles is their inherent tendency to oxidize in ambient conditions. Recently, there have been several reports presenting various approaches which demonstrate that copper nanoparticles can resist oxidation under ambient conditions, if they are coated by a proper protective layer. This layer may consist of an organic polymer, alkene chains, amorphous carbon or graphenes, or inorganic materials such as silica, or an inert metal. Such coated copper nanoparticles enable achieving high conductivities by direct printing of conductive patterns. These approaches open new possibilities in printed electronics, for example by using copper based inkjet inks to form various devices such as solar cells, Radio Frequency Identification (RFID) tags, and electroluminescence devices. This paper provides a review on the synthesis of copper nanoparticles, mainly by wet chemistry routes, and their utilization in printed electronics.
在过去几年中，铜纳米颗粒的合成因其在替代用于导电印刷的昂贵纳米银墨水方面的巨大潜力而备受关注。利用这些铜纳米颗粒的一个主要问题是它们在环境条件下固有的氧化倾向。最近，有几份报告提出了各种方法，表明如果铜纳米颗粒被适当的保护层包覆，它们在环境条件下可以抵抗氧化。该层可能由有机聚合物、烯烃链、无定形碳或石墨烯组成，或者由无机材料如二氧化硅或惰性金属组成。这种包覆的铜纳米颗粒能够通过直接印刷导电图案来实现高电导率。这些方法为印刷电子学开辟了新的可能性，例如通过使用基于铜的喷墨墨水来形成各种器件，如太阳能电池、射频识别（RFID）标签和电致发光器件。本文主要通过湿化学路线对铜纳米颗粒的合成及其在印刷电子学中的应用进行综述。
