569vip威尼斯游戏关于美国UIUC的Jimmy K. Hsia教授学术报告通知

 报 告 人：Prof. K. Jimmy Hsia（Department of Mechanical Science and Engineering University of Illinois, Urbana, IL, USA）

报告题目：3D Curvilinear Shape Formation through 2D Engineering at Nanoscale

报告时间：2014年5月30日（周五）下午4:00-5:00

报告地点：569vip威尼斯游戏玉泉校区教十二-118

Abstract

      Self-assembly of 3D curvilinear shapes can be induced by various driving forces, including capillary interactions and mismatch/residual strains. As the characteristic dimensions of structures and devices become smaller, the surface to volume ratio in these components increases significantly. Consequently, surface phenomena become increasingly important. In this presentation, I will use several particular case studies to demonstrate that interesting mechanical phenomena exist in 3D shape formation from 2D nanoscale thin films. These case studies include the self-assembling process of 3D photovoltaic devices made of thin silicon foil (cover article in Dec 2009 issue of PNAS), folding of polymer films by differential swelling, and formation of semiconductor nanotube arrays by mismatch strain. Modeling of these systems shows that critical parameters emerge naturally. These parameters may be used to guide the fabrication and manufacturing of nanoscale components.

Biography

K. Jimmy Hsia is Professor of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign (UIUC). He received his B.S. from TsinghuaUniversity, Beijing, China, and his Ph.D. from MIT.  He is a solid mechanician by training.  His research interests include deformation and failure mechanisms of materials, mciro/nanomechanics of nanoscale materials, and, recently, cell mechanics. He is a Fellow of American Association for the Advancement of Science (AAAS), a Fellow of American Society of Mechanical Engineers (ASME), and recipient of NSF Research Initiation Award, Max-Planck Society Scholarship, Japan Society for Promotion of Science Fellowship, and Associate of Center for Advanced Study at UIUC. From 2005-2007, Hsia served as Founding Director of Nano and Bio Mechanics Program in the Directorate for Engineering at NSF. He served as Associate Dean of GraduateCollege at UIUC, and Associate Vice Chancellor for Research for New Initiatives at UIUC.