Speaker
Description
Since first being reported, the growth of two-dimensional (2D) metal carbides such as Mo2C via chemical vapour deposition (CVD) has received continuous attention from the research community. However, due to the complicated growth process involving a liquid metal catalyst, as well as process conditions also suitable for the concurrent growth of graphene, a multitude of different morphologies, heterostructures and respective growth mechanisms have been reported. So far, the system has almost exclusively been studied under ambient pressure growth conditions, making most common in-situ techniques such as in-situ near ambient pressure X-ray photoelectron spectroscopy (XPS) and environmental scanning electron microscopy (ESEM) inaccessible. In this work, we present recent advances in the development of low-pressure CVD growth of ultrathin Mo2C, studying various parameters of the system to tune grown crystals towards desired morphological properties.