ABSTRACT：

    It is a very important and challenging field to make electronic devices bendable and stretchable while they function. However, the current circuits are made of silicon, which is intrinsically a brittle material. The typical fracture strain of single crystalline silicon is only about 2%. We designed and produced stretchable form of single crystalline silicon on rubber substrate. The basic idea is to form microscale periodic, wavy silicon ribbons. Our analytical model has exposed the underlying mechanism of this wavy silicon and figured out that this wavy silicon can significantly improve the stretchability (up to 20%) without damage the structure and affecting the electric performance.

Brief Biography：

    Hanqing Jiang received Ph.D. from Tsinghua University in 2001 with the “National Excellent Doctoral Dissertation Award.”  Then he joined Professor Young Huang’s group at the University of Illinois at Urbana-Champaign as a Postdoc and Research Scientist.  He will join the faculty in the Department of Mechanical and Aerospace Engineering at Arizona State University as an assistant professor this Fall.

    His current research interest is the multi-scale materials modeling and simulation with emphasis on multifield interactions, including atomistic-based continuum theory, atomic-scale finite element method, nanocomposites, electronic-mechanical coupling of carbon nanotubes, and stretchable electronics.  He has published 3 book chapters, and 25 peer-reviewed journal papers. Many of his papers are among the top cited papers in mechanics and/or mechanical engineering communities. He has given many lectures at international conferences.