论文标题
水性，空气稳定，超导1T'-WS $ _2 $单层 - ink-ink-ink的合成
Synthesis of an aqueous, air-stable, superconducting 1T'-WS$_2$ monolayer-ink
论文作者
论文摘要
液相化学去角质是实现行业规模生产二维（2D）材料的理想选择，用于广泛的应用，例如可打印的电子产品，催化和能源存储。但是，许多有影响力的2D材料具有量子技术潜力的2D材料，只能在实验室环境中研究，因为它们的空气敏感性以及化学加工后的身体性能丧失。在这里，我们报告了一种简单的化学去角质方法，可以创建一种稳定的，水性，无表面活性剂的超导墨水，其中包含相位的1T'-ws $ _2 $单层，这些单层是空气敏感的拓扑拓扑绝缘子1t'-wte $ _2 $。我们证明，薄膜可以在硬质和柔性底物上施放。印刷膜在室温下是金属的，超导在7.3 K以下，表现出强烈的各向异性非常规的超导性行为，其面板内和平面外临界磁场为30.1 T和5.3 t，其临界电流为44 mA，并且在环境环境中至少为30天。我们的结果表明，化学加工可以提供工程解决方案，这使得非平凡的2D材料曾经仅在实验室中进行商业访问。
Liquid-phase chemical exfoliation is ideal to achieve industry scale production of two-dimensional (2D) materials for a wide range of application such as printable electronics, catalysis and energy storage. However, many impactful 2D materials with potentials in quantum technologies can only be studied in lab settings due to their air-sensitivity, and loss of physical performance after chemical processing. Here, we report a simple chemical exfoliation method to create a stable, aqueous, surfactant-free, superconducting ink containing phase-pure 1T'-WS$_2$ monolayers that are isotructural to the air-sensitive topological insulator 1T'-WTe$_2$. We demonstrate that thin films can be cast on both hard and flexible substrates. The printed film is metallic at room temperature and superconducting below 7.3 K, shows strong anisotropic unconventional superconducting behavior with an in-plane and out-of-plane upper critical magnetic field of 30.1 T and 5.3 T, has a critical current of 44 mA, and is stable at ambient conditions for at least 30 days. Our results show that chemical processing can provide an engineering solution, which makes non-trivial 2D materials that used to be only studied in laboratories commercially accessible.
