報 告 人：Yonggang Huang教授（Northwestern University）
報告題目：Assembly of micro/nanomaterials into complex, three-dimensional architectures by compressive buckling
報告時間：2015年8月31日上午10:30-11:30
報告地點：浙江大學玉泉校區教十二-118
Abstract
Complex, three dimensional (3D) structures in biology (e.g. cytoskeletal webs, neural circuits, vasculature networks) form naturally to provide essential functions in even the most basic forms of life. Compelling opportunities exist for analogous 3D architectures in man-made devices, but design options are constrained by existing capabilities in materials growth and assembly. Here we report routes to previously inaccessible classes of 3D constructs in advanced materials, including device-grade silicon [1]. The schemes involve geometric transformation of two dimensional (2D) micro/nanostructures into extended 3D layouts by compressive buckling. Demonstrations include experimental and theoretical studies of more than forty representative geometries, from single and multiple helices, toroids and conical spirals to structures that resemble spherical baskets, cuboid cages, starbursts, flowers, scaffolds, fences and frameworks, each with single and/or multiple level configurations.
Biography:
Yonggang Huang is the Joseph Cumming Professor of Departments of Civil and Environmental Engineering and Mechanical Engineering at Northwestern University. He has broad interests in many branches of Engineering Science and is interested in establishing mechanics models for advanced technology, such as stretchable and flexible electronics, inorganic solar cell, LEDs, cardiac and neural electro-physiological sensors, multifunctional catheters, epidermal electronics and transient electronics. Mechanics provides the scientific and engineering foundations and design guidelines for these stretchable and flexible devices. He has published 1 book and more than 400 journal papers and book chapters, including multi-disciplinary journals Science (2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014) and its sister journal Science Translational Medicine (2010), Nature (2008, 2013) and its sister journals Nature Materials (2006, 2008, 2010a,b, 2011, 2013), Nature Nanotechnology (2006, 2013), Nature Neuroscience (2011) and Nature Communications (2012, 2013a,b, 2014a,b), and PNAS (2007, 2008, 2009, 2010, 2011a,b, 2012, 2013); and journals in physics (e.g., PRL), materials (e.g., Advanced Materials), nanotechnology (e.g., Nano Letters), biology (e.g., PLoS One), and 40 papers in the top mechanics JMPS. His recent work has been reported by many popular media such as ABC, BBC, Boston Globe, Business Week, CBS, Chicago Tribune, CNN, Discover Magazine, Discovery Channel, FOX, MSNBC, New York Times, Newsweek, Reuters, Scientific American, United Press International, and US News & World Report.
His recent awards include the Larson Award in 2003, Melville Medal in 2004, Richards Award in 2010, and Drucker Medal in 2013, all from ASME; Young Investigator Medal from the Society of Engineering Sciences in 2006; International Journal of Plasticity Medal in 2007; Guggenheim Fellowship from the John Simon Guggenheim Foundation in 2008; and ISI Highly Cited Researcher (Engineering) in 2009. He is the Editor-in-Chief of Theoretical and Applied Mechanics Letters, Editor of Journal of Applied Mechanics (Transactions of the American Society of Mechanical Engineers), and President of the Society of Engineering Sciences.
