How a silver dendritic mesocrystal converts to a single crystal

被引：47

作者：

Fang, Jixiang ^{[1
]}

Ding, Bingjun ^{[1
]}

Song, Xiaoping ^{[1
]}

Han, Yong ^{[2
,3
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Sci, Xian 710049, Shann Xi, Peoples R China

[2] US DOE, IPRT, Ames, IA 50011 USA

[3] US DOE, Ames Lab, Ames, IA 50011 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 17期

关键词：

D O I：

10.1063/1.2888770

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we demonstrate how a silver dendrite transforms from mesocrystal into single crystal and the stability for a dendritic silver mesocrystal within a Sn/AgNO3 galvanic replacement reaction. Our findings provide the direct evidence and visible picture of the transformation from mesocrystal to single crystalline structure and further confirm the particle-mediated crystallization mechanism. At the initial stage of the transformation, there is a crystallographic fusion process, dominated by oriented attachment mechanism. Ostwald ripening also plays an important role in forming smooth surface and regular shape of the final nanocrystal. (c) 2008 American Institute of Physics.

引用

页数：3

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