原位液体环境透射电镜技术在纳米晶体结构研究中的应用  

Applications of in situ liquid environment transmission electron microscopy in nanocrystal structure investigations

作　　者：王文[1] 徐涛[1] 孙立涛[1] WANG Wen;XU Tao;SUN Li-tao(SEU-FEI Nano-Pico Center,Key Lab of MEMS of Ministry of Education,Southeast University,Jiangsu Nanjing 210096,China)

机构地区：[1]东南大学FEI纳皮米中心、MEMS教育部重点实验室、电子科学与工程学院,江苏南京210096

出　　处：《电子显微学报》2018年第5期500-512,共13页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(Nos.51420105003,11327901,61601116);国家杰出青年科学基金项目(No.11525415).

摘　　要：近年来随着微纳加工工艺以及TEM技术的进步,原位液体环境TEM技术发展迅速,目前其空间分辨率已可达到亚纳米尺度。相关研究涉及物理、化学、材料和生物等多个领域,为液体环境中纳米材料的成核、生长、自组装以及生物样品结构表征等方面的研究提供了很大的帮助。本文首先介绍了原位液体环境TEM技术的主要实现方式以及液体腔制备技术的发展;其次重点综述了近年来原位液体腔TEM技术在纳米晶体成核、生长、刻蚀、自组装以及电场作用下的纳米结构演变中的应用;最后对原位液体环境TEM技术未来的机遇和挑战进行了展望。Accompanying with the development of micro/nano fabrication and transmission electron microscopy, the applications of in-situ liquid environment technology have developed rapidly. Related researches, involving many fields such as physics, chemistry, materials and biology, contribute to the study of nanocrystal nucleation, self-assembly, and biological sample structures characteristic in liquid environment. Three different approaches of the in-situ liquid environment TEM, together with the preparation technology of the in-situ liquid cell, have been introduced at the beginning of this article. Subsequently, recent applications of liquid cell TEM in nanocrystal nucleation, growth, etching, self-assembly and electrochemical processes have been reviewed. At last, we provide a perspective on future challenges and opportunities in liquid cell TEM.

关 键 词：液体环境透射电镜 液体腔 纳米晶体生长 

分 类 号：TB383[一般工业技术—材料科学与工程] TG115.215.3[金属学及工艺—物理冶金]