论文标题
二维单一核化合物的分散行为
Dispersion behavior of two dimensional monochalcogenides
论文作者
论文摘要
解决方案可加工的二维（2D）材料为基础研究和可穿戴电子应用提供了理想的平台。除了石墨烯和2D二分法外，IVA-VI单钙化剂（MMC）最近出现了下一代电子应用的有前途的候选人。但是，对MMC的质量，溶解度和稳定性至关重要的色散行为一直没有探索。在这里，已经研究了多种有机溶剂的单硫化物（II）单硫化物（II）单硫化物（SNS）纳米片的去角质和分散行为。考虑到溶剂极性，表面张力和汉森溶解性参数，对九种不同的有机溶剂进行了检查和分析。分别达到了分离的GES和SNS薄片的显着产率，即分别达到2-丙醇和N-甲基-2-吡咯酮中的〜16.4和〜23.08μg/ml。孤立的薄片是几层纳米片，其侧面尺寸在几百纳米范围内。 MMCS胶体表现出长期稳定性，这表明MMC适用于可扩展的解决方案可加工的印刷电子设备应用。
Solution processable two-dimensional (2D) materials have provided an ideal platform for both fundamental studies and wearable electronic applications. Apart from graphene and 2D dichalcogenides, IVA-VI monochalcogenides (MMCs) has emerged recently as a promising candidate for next generation electronic applications. However, the dispersion behavior, which is crucial for the quality, solubility and stability of MMCs, has been quite unexplored. Here, the exfoliation and the dispersion behavior of Germanium (II) monosulfide (GeS) and Tin (II) monosulfide (SnS) nanosheets has been investigated in a wide range of organic solvents. Nine different organic solvents were examined and analyzed, considering the solvent polarity, surface tension, and Hansen solubility parameters. A significant yield of isolated GeS and SnS flakes, namely ~16.4 and ~23.08 μg/ml in 2-propanol and N-Methyl-2-pyrrolidone respectively were attained. The isolated flakes are few-layers nanosheets with lateral sizes over a few hundreds of nanometers. The MMCs colloids exhibit long-term stability, suggesting the MMCs applicability for scalable solution processable printed electronic device applications.
