報告題目： Scanning Probe Microscopy for Advanced Functional Materials: When Mechanics Meets “Big” Data
報告人： 李江宇 教授 華盛頓大學(xué)
時間：2017年4月28日（周五）16:00-17:00
地點：玉泉校區(qū)教12-118
報告摘要：
Strain and electromechanical coupling are ubiquitous in nature, and exist in many processes involved in information technology, energy conversion, and biological phenomena. Strain-based scanning probe microscopy (s-SPM) techniques, especially piezoresponse force microscopy (PFM) and electrochemical strain microscopy (ESM), have emerged as powerful tools to probe and manipulate materials, structures, and systems at the nanoscale. In this talk, we will present the fundamentals of s-SPM and a variety of its operational modes, introduce its applications in scientifically and technologically important functional materials, electrochemical systems, and biological structures, and discuss some of its challenges and potential opportunities. By detecting dynamic strains associated with underlying microscopic processes excited by a scanning probe, high sensitivity and unprecedented spatial resolution can be obtained, especially supported by statistic tools for advanced data analysis, though caution must be exercised to distinguish different microscopic mechanisms, and quantitative interpretation of remains challenging. We expect that s-SPM will continue to provide great insight into functional materials and structures, and will play a valuable role in the emerging field of materiomics.
報告人簡介：
李江宇教授畢業(yè)于清華大學(xué)材料科學(xué)與工程系，在美國科羅拉多大學(xué)獲得博士學(xué)位，曾在加州大學(xué)和加州理工學(xué)院從事博士后研究。長期致力于多功能智能材料與結(jié)構(gòu)力學(xué)行為研究，共發(fā)表SCI論文近200篇，包括Science、Nature Materials、PNAS、PRL等國際頂級期刊，引用逾7000余次。研究成果得到Nature、Science等頂級期刊亮點顯示，美國物理學(xué)會、材料研究會、和英國皇家化學(xué)學(xué)會等專業(yè)組織專題報道，以及美國NBC電視臺、英國BBC廣播電臺和英國New Scientist雜志等大眾傳媒特約專訪。曾榮獲美國機械工程師協(xié)會SiaNemat-Nasser獎?wù)隆⒆罴颜撐莫劇CCES青年成就獎、以及美國華盛頓大學(xué)Bryan T. McMinn講座教授等榮譽。現(xiàn)擔(dān)任美國物理聯(lián)合會Journal of Applied Physics副主編、自然出版集團npj Computational Materials編委、中國硅酸鹽學(xué)會Journal of Materiomics編委、中力學(xué)學(xué)會Theoretical and Applied Mechanics Letters編委，和中國科學(xué)院Science China ?C Technological Science青年編委。
