This study focuses on the inkjet printing of aluminum-doped zinc oxide (AZO) spherical and platelet nanoparticle-based nanoflakes with typical sizes ranging from 700 to 800 nm. The AZO nanoparticles were synthesized by aqueous precipitation. The preparation of the solvent-based inks was performed with the control of the viscosity, ink stability, and nanoparticle dispersion. The results showed that the viscosity for nanoparticle dispersions slightly changes (from 6.9 to 8.7 cPs) when the nanoparticles mass concentration increases from 1.8 to 10%. In order to achieve thin films of AZO nanoparticles, we optimized the printing process by real-time monitoring of drop velocity with a stroboscopic camera. This technology involves direct patterning of a functional material by tiny MEMS-jets on a flexible and rigid substrate at specific locations. The lowest concentration of AZO nanoparticles corresponding to 1.8% enables printing several times during the nanoparticle dispersions and the clogging of printhead nozzles is less pronounced. In our conditions, the optimum voltage value is 25 V to achieve a drop velocity from 7 to 9 m/s. In the case of nanospheres with 10% of AZO nanoparticles, for a large dropspace (90 \(\mu\)m), the individual printed droplets appear as a sequence of linear dots. When the drop spacing decreases to 75 \(\mu\)m, isolated drops start to overlap and merge. Further decrease in the drop spacing eliminates scalloping and leads finally to a regular and continuous layer at 55 \(\mu\)m.

这项研究的重点是典型尺寸为700至800 nm的铝掺杂氧化锌（AZO）球形和片状纳米颗粒纳米薄片的喷墨印刷。通过水性沉淀合成AZO纳米颗粒。在控制粘度，油墨稳定性和纳米颗粒分散性的情况下进行溶剂基油墨的制备。结果表明，当纳米颗粒质量浓度从1.8％增加到10％时，纳米颗粒分散体的粘度略有变化（从6.9 cPs更改为8.7 cPs）。为了获得AZO纳米颗粒的薄膜，我们通过使用频闪相机实时监控墨滴速度来优化印刷工艺。这项技术涉及通过在特定位置的柔性和刚性基板上的微型MEMS喷嘴直接对功能材料进行构图。对应于1.8％的AZO纳米颗粒的最低浓度允许在纳米颗粒分散过程中进行多次打印，并且打印头喷嘴的堵塞不太明显。在我们的条件下，最佳电压值为25 V，以实现7至9 m / s的下降速度。对于具有10％AZO纳米颗粒的纳米球，则具有较大的液滴空间（90\（\ mu \） m），单个打印的液滴显示为线性点序列。当墨滴间距减小到75 \（\ mu \） m时，孤立的墨滴开始重叠并合并。在55中的液滴间距消除扇形和引线最后有规律的和连续的层进一步降低\（\亩\）米。