Consecutive to the interest in Graphene since its first isolation by mechanical exfoliation a decade ago, the broader family of two-dimensional (2D) materials has become the subject of extensive attention due to their atomic-scale thickness and unique properties, as well as the excitements ushered in by the announcement of the Nobel prize in Physics for the discovery of graphene. Meanwhile, we note an increased demand in nano-materials due to the development of industrial devices in quantum-computing, artificial intelligence, energy, bio-sensing, etc.
This talk aims to introduce the energy-related fundamental science of 2D materials and novel manufacturing methodologies on 1D and 2D materials.
The first part of the talk will focus on Dr. Xian "Annie" Zhang’s systematic experiment and theoretical results on thermal-transport properties of 2D materials using the state-of-the-art optothermal Raman technique. It enables comparisons of experiment results between different conditions of 2D materials and discoveries of the interfacial thermal transport phenomena in h-Boron Nitride (BN) encapsulated nanostructure. It has been found that the fully BN encapsulated structure offers a great heat dissipation for nano-structure.
Zhang and her co-workers are also investigating the manipulation of energy transport by magnetic fields and mechanical deformation, and energy conversion properties such as piezoelectric and thermoelectric effect. This work sheds light on engineering high-performance 2D field effect transistors, and facilitates the design of devices with controllable properties. The second part of the talk will focus on the ongoing efforts in developing scalable nanomanufacturing techniques of creating hundreds of field effect transistors around one single nanowire at arbitrary positions and creating heterostructures by van der Waals transfer technique. These techniques have the engineering applications to bio-sensors, gas filters, nanorobots, etc.
Finally, Zhang will share her experiences and her philosophy on engineering education.
Xian "Annie" Zhang received her B.S. in Mechanical Engineering from Shanghai Jiao Tong University a joint program with the University of Michigan, and her M.S. and Ph.D. in Mechanical Engineering from Columbia University. She is currently an assistant professor at SUNY Buffalo. Her work has been published in leading scientific journals such as Nature and ACS Applied Materials & Interfaces, and presented in international conferences. During her time at Columbia, she was awarded best research poster of the year, and a Teaching Certification from Columbia Teaching Center.
For more information and opportunities to meet with the speaker, and to RSVP for the event, please contact Elaine Chichizola at [email protected]