Plasma enhanced inkjet printing of particle-free silver ink on polyester fabric for electronic devices
Plasma enhanced inkjet printing of particle-free silver ink on polyester fabric for electronic devices
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DOI：
10.1016/j.mne.2021.100103
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发表时间：
2022-04-01
影响因子：
--
通讯作者：
Tai, Chao-Yi
中科院分区：
文献类型：
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作者：
Jones, Thomas D. A.;Hourd, Andrew C.;Tai, Chao-Yi
大多数金属油墨的配方由纳米颗粒悬浮液组成，然而，这些在印刷时由于形成不必要的结块而受到影响。对无颗粒银复合油墨的探索和优化引起了对这些配方的喷墨打印的强烈需求，而不是基于纳米颗粒的悬浮油墨。这是由于增强的印刷性和通过热还原成导电材料的快速转换，可用于电子制造。我们通过喷墨打印开发了一种用于“智能服装”的银复合墨水。通过热还原工艺在聚酯织物上形成电路，证明了高质量的印刷-其特点是没有卫星液滴形成和速度快。织物印刷受金属覆盖度和附着力的限制，我们在工作中证明并改进了这一点，通过对聚酯表面进行低温常压空气等离子体预处理，使用易于操作和经济的等离子体装置，提高了印刷银的密度和覆盖度。印刷银层减少和薄膜结晶度的特点是高分辨率扫描电子显微镜和光谱（紫外可见和拉曼）详细描述了高轨道特征电导率的生长机制，产生1.378 +/- 0.001 ω /平方的低片电阻率，并通过1.9 V， 250 mA发光器件的照明，突出了其在导电特征处理中的应用。
Most formulations of metal inks comprise of a suspension of nanoparticles however, these suffer when printed by the formation of unwanted agglomeration. The exploration and optimisation of particle-free silver-complex ink is causing a strong demand for inkjet printing of these formulations over nanoparticle-based suspension inks. This is due to the enhanced printability and rapid conversion via thermal reduction into a conductive material, which can be utilised in electronics manufacture. We developed a silver-complex ink for 'smart-clothing' through inkjet printing. The high-quality printing - characterised by no satellite droplet formation and fast speed - is demonstrated upon polyester fabric by the formation of electrical circuitry using a thermal reduction process. Fabric printing is limited by good metal coverage and adhesion, which we demonstrate and improve on in the work by the application of a low temperature, atmospheric air plasma pre-treatment to the polyester surface, which improves printed silver density and coverage using a plasma device which is easy to operate and economic. Printed silver layer reduction and film crystallinity is characterised from high resolution scanning electron microscopy, and spectroscopy (Ultraviolet-visible and Raman) detailing growth mechanisms for high track feature conductivity, producing a low sheet resistivity of 1.378 +/- 0.001 Omega/square and by the lighting of a 1.9 V, 250 mA Light Emitting Device, highlighting its application for conductive features processing.