报告题目：In-situ TEM Observation of Phase Transformation at Nano Scale
报 告 人：Prof. Yizhong Huang (Nanyang Technological University)
报告时间：2019年7月28日上午9:00
报告地点：五山校区14号楼205会议室
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报告摘要：
Phase transformation is a process that involves microstructural transition of materials when subject to external environments and usually accompanied by a variation in energy. Whenever a phase transformation occurs, sufficient energy is required to overcome the barriers of the structure rearrangement, no matter the transformation process is exothermic or endothermic. Transmission Electron Microscopy (TEM) is a powerful technique and provides diffraction and phase contrasts that allow the characterization of crystalline structures of materials at nano/atomic scale. It is capable of in-situ observation of the evolution of crystals when subject to external environments (such as electron-beam irritation and an aqueous solution) with the help of in-situ holder facilities attached. 
In this presentation, three examples will be given based on the recent research work that was performed by my research group members and collaborators: (1) Water induced phase transformation of GeO2 glass to nanocrystals under ambient condition; (2) Hexagonal Close Packed Au Nanostructures; (3) Transformation of CuO to Cu2O when subject to electron beam irradiation.


报告人简介：
黄一中教授主要从事新型纳米功能材料（纳米薄膜、核-壳结构材料、有序纳米阵列材料等）、纳米器件（生物传感器、气体传感器）以及材料微/纳米尺度失效等方面的研究工作，擅长采用聚焦离子束显微镜（FIB）以及高分辩透射电镜（HR-TEM）等先进设备表征纳米结构材料。他1998年毕业于北京科技大学获材料学博士学位，先后在瑞典林雪萍大学、新加坡国立大学、英国牛津大学等做博士后研究，2003起在英国牛津大学参与教学（Faculty Member）与研究工作，从事材料电子显微分析方面的研究，期间在美国哈怫大学访问一年。2010年就职于新加坡南洋理工大学材料科学与工程学院，并兼职牛津大学访问学者 (Academic Scholar) 。是美国化学学会以及国际电化学协会成员，曾任全英中国材料协会主席以及国际纳米科学和纳米技术刊物客座编辑。在包括Nature Communications, Advanced Materials, Nano Letters, Advanced Energy Materials，Advanced Functional Materials, ACS Nano and Nano Energy等刊物发表学术论文近200篇，总引用超过5000次，H因子达37。国际会议邀请口头报告及担任大会/分论坛主席若干。