化学助剂作用下银纳米线生长机制与尺寸控制的研究进展  

Research progress in study of growth mechanism and size control of silver nanowires under action of chemical additives

作　　者：雷博文[1] 堵永国[1] 王震[1] LEI Bowen;DU Yongguo;WANG Zhen(Department of Material Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China)

机构地区：[1]国防科学技术大学航天科学与工程学院材料科学与工程系,湖南长沙410073

出　　处：《电子元件与材料》2017年第1期1-7,共7页Electronic Components And Materials

摘　　要：介绍了液相法制备银纳米线(AgNW)过程中常用的阳离子型控制剂、阴离子型控制剂和分子型控制剂三类化学控制剂对银纳米线尺寸的影响;阐述了不同种类化学控制剂的作用机理,总结了化学控制剂作用下银纳米线的形成机制,分别是:多孪晶颗粒单轴生长机制、溶解平衡机制、定向附着机制以及自组装机制;对液相法制备银纳米线过程中常用的高分子包覆剂的种类及作用机制进行了归纳;最后结合实际问题,分别指出化学控制剂与包覆剂在制备银纳米线时的优点与不足。The effects of three kinds of chemical control agents, such as cationic control agent, anionic control agent and molecular type control agent, on the size of AgNW, which are commonly used in the preparation of silver nanowires by liquid phase method, are introduced. The control mechanism of different types of chemical control agents is described afterwhich the formation mechanism of silver nanowires under the action of chemical control agents are summarized, which includes the single axis growth mechanism, the dynamic dissolution and formation mechanism, the coarsening mechanismvia oriented attachment process and the growth mechanism via self-assembly of silver nanoparticles and nanorods; after that,the types and control mechanism of the polymer coating agent used in the preparation of silver nanowires by liquid phase method are summarized; finally, combining with practical problems, the advantages and disadvantages of the chemical control agent and the coating agent in the preparation of silver nanowires are pointed out, separately.

关 键 词：液相法 银纳米线 综述 化学控制剂 包覆剂 作用机制 

分 类 号：TG146.32[一般工业技术—材料科学与工程]