Ag(TCNQ)纳米晶须的生长机理  

Growth Mechanism of Ag(TCNQ)Nanocrystal whiskers

作　　者：叶春暖[1] 范智勇[2] 杨剑[1] 姚彦[1] 莫晓亮[1] 徐华华[3] 楼成飞[1] 曹冠英[1] 孙大林[1] 卢嘉[2] 陈国荣[1] 

机构地区：[1]复旦大学材料科学系,上海200433 [2]加州大学爱尔文分校化工与材料科学系 [3]复旦大学化学系,上海200433

出　　处：《真空科学与技术学报》2004年第2期129-132,共4页Chinese Journal of Vacuum Science and Technology

摘　　要：本文采用真空饱和蒸汽反应法在相对较低的温度下制备了一系列一维纳米结构的金属有机配合物Ag(TCNQ)。用多晶XRD谱表征了样品的成份和晶体结构 ,通过SEM观察到了不同生长阶段的形貌。纳米晶须的生长分别经历了溶解、结晶和单向生长三个阶段。在此基础上 。A series of one dimensional nanostructured organometallic complex,Ag(TCNQ),were prepared at a fairly low temperature using vacuum saturated vapor reaction.The composition and crystal structure of the obtained nanostructure were characterized by powder X ray diffraction (XRD).Scanning electron microscopy (SEM) were employed to monitor the microstructure in the growth processes,and its images showed that the formation of the Ag(TCNQ) nanocrystal whiskers includes three steps,i.e.co melting,crystallization and directional growth.The growth mechanism was further explained with the Vapor Liquid Solid (VLS) model.

关 键 词：Ag(TCNQ) 纳米晶须 生长机理 一维纳米结构 金属有机配合物 晶体结构 VLS模型 

分 类 号：TB383[一般工业技术—材料科学与工程] O484.1[理学—固体物理]