기계공학부 구성원들의 많은 관심과 참여 부탁드립니다.

▣ 주   제: Strain and Interfacial engineering of Nanomaterials for Sustainable electronics and Deformable device technologies

▣ 연   사: 조철희 박사

▣ 소   속: NASA Goddard Space Flight Center

▣ 일   시: 2023. 12. 12.(Tue) 11:00

▣ 장   소: 제1공학관 A442호

▣ 초   청: 주철민 교수

▣ 초   록

In this talk, I will discuss how we can leverage uncontrolled mechanical instabilities of nanomaterials, such as interfacial delamination or out-of-plane deformation that have been commonly observed and considered as inevitable topological defects or detriments to the structural integrity and functional performance of nanomaterials-based systems.  Contrary to such conventional wisdom, I have sought ways to leverage mechanical instabilities of nanomaterials to advance multi-functionalities of nanomaterials-based systems including strain-resilient electrical sustainability, strain-tunable excitonic characteristics (i.e., light-matter interaction), energy generation, and novel optoelectronic phenomena (e.g., out-of-plane electrical polarization/flexoelectricity) by manipulating interfacial characteristics (interfacial engineering) and mechanical deformation (strain-engineering) of the constituent nanomaterial layers.