Inkjet printing of high-concentration particle-free platinum inks
Inkjet printing of high-concentration particle-free platinum inks
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DOI：
10.1016/j.matdes.2021.110377
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发表时间：
2022-01-04
影响因子：
8.4
通讯作者：
Abdolvand, Amin
中科院分区：
文献类型：
--
作者：
Grant, Timothy D.;Hourd, Andrew C.;Abdolvand, Amin
一项关于高浓度（20 wt%）且稳定的铂（Pt）有机金属墨水优化的研究，该墨水在展示出稳定喷射性能的同时，最大限度地减少了含颗粒墨水的负面影响。通过压电按需喷墨打印机合成了这种墨水，并在玻璃上进行了打印演示。利用基于环己醇的粘度调节剂以及对打印设置的优化，实现了稳定且快速的喷射（Z值：1.83，8 m/s）。通过连续多层打印获得了均匀的纳米薄膜（10 - 30 nm），其显示出高导电性（1.6 ± 0.13×10⁶ S/m，为块状铂的17%）。20 wt%浓度的墨水相较于先前报道的10 wt%等效墨水，显示出更高的均匀性和导电性，首次实现了单次打印即可形成导电特征。由于在打印薄膜中心的均匀性得到显著改善，通过增加打印厚度沉积出了高质量的薄膜。通过X射线衍射、扫描电子显微镜和能量色散X射线证明了薄膜的高纯度。还研究了打印的铂薄膜用于制备表面增强拉曼散射（SERS）检测平台的适用性。所呈现的工作将为受益于选择性沉积和低反应性铂纳米薄膜的应用铺平道路，作为概念验证，展示了一个LED电路。（c）2022作者。由爱思唯尔有限公司出版。这是一篇在CC BY许可（http://creativecommons.org/licenses/by/4.0/）下的开放获取文章。
An investigation into the optimisation of a highly-concentrated (20 wt%) and stable platinum (Pt) organometallic ink, showing consistent jetting performance whilst minimising the negatives associated with particle-containing inks. The ink was synthesised and printing demonstrated onto glass by a piezoelectric drop-on-demand inkjet printer. Stable and rapid jetting (Z number: 1.83, 8 m/s) was achieved using cyclohexanol-based viscosity modifiers and optimisation of the print settings. Uniform nanofilms (10 - 30 nm) were obtained by the printing of successive layers which showed high conductivities (1. 6 +/- 0.13 x 106S/m, 17% of bulk Pt). The 20 wt% concentrated inks showed increased uniformity and electrical conductivity over previously reported 10 wt% equivalent inks, enabling for the first-time conductive features with a single print pass. High quality films were deposited by increasing the printed thickness due to significant uniformity improvements obtained across the centre of the printed films. A high film purity was demonstrated by X-ray diffraction, Scanning Electron Microscopy and Energy Dispersive Xrays. The suitability of the printed Pt films for production of Surface Enhanced Raman Scattering (SERS) detection platforms was also investigated. The presented work will pave the way for applications benefiting from selective deposition and low reactivity Pt nanofilms, as a proof of concept an LED circuit is demonstrated. (c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/).