Liquid metal-based processes can offer significant possibilities to the world of two dimensional semiconductors. Surface of liquid metals may be layered in specific cases. These layered media can be oxidised or sulphurised and then harvested. The surface of liquid metals, immersed in an ionic liquid, self generates an intrinsic voltage that can be used for templating two dimensional materials. Two dimensional materials can be electrochemically formed on the surface of liquid metals. Finally, by taking advantage of the selective enrichment of liquid metal interfaces, and harvesting the doped metal oxide semiconductor layers, the complexity of doping process can be mitigated and a high degree of control over the outcomes can be achieved. In this talk some of the key physical properties of liquid metals including the origin of their low melting points and their high thermal and electrical conductivities will be presented. The boundary-induced layering and oxidation as essential traits for creating 2D films will be discussed. Afterward, the interfacial synthesis of 2D materials is depicted with the discussion of surface oxidation, reduction and exfoliation.
Kourosh Kalantar-Zadeh is a professor of Chemical Engineering at UNSW and one of the Australian Research Council (ARC) Laureate Fellows of 2018. Prof. Kalantar-Zadeh is involved in research in the fields of analytical chemistry, materials sciences, gastroenterology electronics and sensors, and has co-authored of ~500 highly cited scientific papers and books. He is also a member of the editorial boards of journals including ACS Applied Nano Materials (associate editor), ACS Sensors, Advanced Materials Technologies, Nanoscale, Applied Materials Today, Applied Surface Science and ACS Nano. Kalantar-Zadeh is best known for his works on ingestible sensors, liquid metals and two-dimensional semiconductors. He led his group to the invention of an ingestible chemical sensor: human gas sensing capsule, one of the breakthroughs in the field of medical devices. Prof Kalantar-Zadeh has received many international awards for his scientific contributions including the 2017 IEEE Sensor Council Achievement, 2018 American Chemical Society (ACS) Advances in Measurement Science Lectureship awards and 2020 Robert Boyle Prize of Royal Society of Chemistry (RSC). He also appeared in the Clarivate Analytics most highly cited list since 2018.