Electrodeposited 2D Transition Metal Dichalcogenides on graphene: a novel route towards scalable flexible electronics

与石墨烯一样，过渡金属二硫属化物（TMDC）层ME2（其中M =过渡金属，E =硫、硒或碲）由单个或几个原子厚的共价键合晶格组成。这些原子片表现出非凡的电子和光学特性，因为它们在表面没有悬挂键和陷阱态。层之间的货车范德华相互作用允许非常不同的材料的集成，而没有晶格匹配的约束。此外，这几层可以承受10%的机械应变，这使得这些材料特别适合用于柔性电子设备，预计未来五年市场价值将超过100亿英镑。二维材料和石墨烯的异质结构在各种电子、光电、能源和传感器应用中具有巨大的潜力，但受到技术限制。该提议的目的是利用我们最近在金属以及石墨烯电极上电沉积几层2D硫属化物（例如MoS2和WS2）方面的突破。我们将通过各种设备展示这些优势，这些设备将联合收割机的最新性能与可扩展的、工业上可接受的柔性基板处理相结合。与我们的项目合作伙伴合作，我们将致力于最大限度地发挥这项工作产生的潜在社会和经济影响。

Like graphene, a layer of a transition metal dichalcogenide (TMDC), ME2 (where M = transition metal and E = sulfur, selenium or tellurium), consists of a single- or few-atom-thick, covalently bonded lattice. These atomic sheets exhibit extraordinary electronic and optical properties, as they do not suffer from dangling bonds and trap states at the surface. The van der Waals interactions between the layers allows the integration of very different materials without the constraints of crystal lattice matching. Moreover, those few layers can withstand mechanical strains of 10%, which makes these materials particularly suitable for flexible electronic devices, a market expected to be worth more than £10B in the next five years. Heterostructures of 2D materials and graphene have great potential for various electronic, opto-electronic, energy, and sensor applications but are held back by technological limitations. It is the intention of this proposal to take advantage of our recent breakthroughs in electrodeposition of few layer 2D chalcogenides, such as MoS2 and WS2, on metal as well graphene electrodes. We will demonstrate these advantages through a variety of devices which combine state-of-the-art performance together with scalable, industrially acceptable processing on flexible substrates. Working with our project partners we will aim to maximise the potential societal and economic impacts that emerge from this work.