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Flexible two-dimensional indium tin oxide fabricated using a liquid metal printing technique
Nature Electronics ( IF 34.3 ) Pub Date : 2020-01-24 , DOI: 10.1038/s41928-019-0353-8
Robi S. Datta , Nitu Syed , Ali Zavabeti , Azmira Jannat , Md Mohiuddin , Md. Rokunuzzaman , Bao Yue Zhang , Md. Ataur Rahman , Paul Atkin , Kibret A. Messalea , Mohammad Bagher Ghasemian , Enrico Della Gaspera , Semonti Bhattacharyya , Michael S. Fuhrer , Salvy P. Russo , Chris F. McConville , Dorna Esrafilzadeh , Kourosh Kalantar-Zadeh , Torben Daeneke

Indium tin oxide (ITO) is a transparent conductor used in applications such as touch screens, smart windows and displays. A key limitation of ITO is its brittle nature, which prohibits its use in flexible electronics. The commercial deposition of high-quality ITO also currently relies on a costly vacuum manufacturing approach. Here we report the centimetre-scale synthesis of flexible two-dimensional ITO using a low-temperature liquid metal printing technique. The approach can directly deposit monolayer or bilayer ITO onto desired substrates, with the resulting bilayer samples offering a transparency above 99.3% and a sheet resistance as low as 5.4 kΩ □−1. We also show that the bilayer ITO features a stratified structure with a pronounced van der Waals spacing. To illustrate the capabilities of the technique, we develop a capacitive touch screen using centimetre-sized monolayer ITO sheets.



中文翻译:

使用液态金属印刷技术制造的柔性二维铟锡氧化物

氧化铟锡(ITO)是用于触摸屏,智能窗户和显示器等应用的透明导体。ITO的主要局限性是它的脆性,这限制了它在柔性电子产品中的使用。当前,高质量ITO的商业沉积还依赖于昂贵的真空制造方法。在这里,我们报告使用低温液态金属印刷技术的柔性二维ITO的厘米级合成。该方法可以将单层或双层ITO直接沉积到所需的基材上,所得的双层样品的透明性高于99.3%,薄层电阻低至5.4kΩ□ -1。我们还显示了双层ITO具有明显的范德华间距的分层结构。为了说明该技术的功能,我们使用厘米大小的单层ITO板开发了电容式触摸屏。

更新日期:2020-01-24
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