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Abstract
The rapid evolution of next-generation electronics and renewable energy technologies relies on materials that can be precisely tailored at the atomic scale. However, existing material fabrication strategies often face fundamental limits in atomic precision and dopant control, restricting performance and scalability. Furthermore, controlled doping in atomic layers is extremely challenging, as it can damage the delicate structure and is highly sensitive to impurities. Addressing this challenge requires cleanrooms, state-of-the-art equipment, and precise control over elemental ratios. However, the high cost of equipment, complex procedures, and stringent requirements continue to hinder progress in ultrathin transparent conductive materials doping and development.
Liquid metals (LM), including low-melting-point post-transition and group-Zn elements, offer a practical and sustainable solution for generating ultrathin functional materials. By leveraging the intrinsic properties of LMs to selectively drive target dopants to the surface, atomically thin doped materials can be harvested from the surface of LMs and printed on different substrates at low temperatures. Such doping is crucial because it enables precise tuning of a material’s electronic and optical properties, leading to advancements in ultrathin transparent conductive layers, which are widely used in touch screens, displays, solar cells, and flexible electronics.
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Brief Bio
Dr Mohammad Bagher Ghasemian is a Senior Research Fellow in the School of Chemical and Biomolecular Engineering at the University of Sydney and a Visiting Research Fellow in the School of Chemical Engineering at UNSW Sydney. Previously, he worked as a researcher in the Centre for Advanced Solid and Liquid Based Electronics and Optics at UNSW Sydney and in the Centre for Smart Supramolecules at Pohang University of Science & Technology (POSTECH), South Korea. His research focuses on the utilisation of liquid metals for the preparation and fabrication of functional nanomaterials and doped 2D structures, with potential applications in flexible devices, optics, electronics, sensing, and photocatalysis.
