Atomic Scale Imaging of Nucleation and Growth Trajectories of an Interfacial Bismuth Nanodroplet
文献类型：期刊论文
| 作者 | Li, YX (Li, Yingxuan); Bunes, BR (Bunes, Benjamin R.); Zang, L (Zang, Ling); Zhao, J (Zhao, Jie); Li, Y (Li, Yan); Zhu, YQ (Zhu, Yunqing); Wang, CY (Wang, Chuanyi) |
| 刊名 | ACS NANO
 |
| 出版日期 | 2016 |
| 卷号 | 10期号:2页码:2386-2391 |
| 关键词 | in situ imaging atomic resolution Bi nanodroplet nucleation growth |
| 通讯作者 | Li, YX |
| 英文摘要 | Because of the lack of experimental evidence, much confusion still exists on the nucleation and growth dynamics of a nanostructure, particularly of metal. The situation is even worse for nano droplets because it is more difficult to induce the formation of a nanodroplet while imaging the dynamic process with atomic resolution. Here, taking advantage of an electron beam to induce the growth of Bi nanodroplets on a SrBi2Ta2O9 platelet under a high resolution transmission electron microscope (HRTEM), we directly observed the detailed growth pathways of Bi nanodroplets from the earliest stage of nucleation that were previously inaccessible. Atomic scale imaging reveals that the dynamics of nucleation involves a much more complex trajectory than previously predicted based on classical nucleation theory (CNT). The monatomic Bi layer was first formed in the nucleation process, which induced the formation of the prenucleated clusters. Following that, critical nuclei for the nanodroplets formed both directly from the addition of atoms to the prenucleated clusters by the classical growth process and indirectly through transformation of an intermediate liquid film based on the Stranski-Krastanov growth mode, in which the liquid film was induced by the self-assembly of the prenucleated clusters. Finally, the growth of the Bi nanodroplets advanced through the classical pathway and sudden droplet coalescence. This study allows us to visualize the critical steps in the nucleation process of an interfacial nanodroplet, which suggests a revision of the perspective of CNT. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000370987400079 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4354]  |
| 专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China;Univ Utah, Nano Inst Utah, Salt Lake City, UT 84112 USA;Univ Utah, Dept Mat Sci & Engn, Salt Lake City, UT 84112 USA |
| 推荐引用方式 GB/T 7714 | Li, YX ,Bunes, BR ,Zang, L ,et al. Atomic Scale Imaging of Nucleation and Growth Trajectories of an Interfacial Bismuth Nanodroplet[J]. ACS NANO,2016,10(2):2386-2391. |
| APA | Li, YX .,Bunes, BR .,Zang, L .,Zhao, J .,Li, Y .,...&Wang, CY .(2016).Atomic Scale Imaging of Nucleation and Growth Trajectories of an Interfacial Bismuth Nanodroplet.ACS NANO,10(2),2386-2391. |
| MLA | Li, YX ,et al."Atomic Scale Imaging of Nucleation and Growth Trajectories of an Interfacial Bismuth Nanodroplet".ACS NANO 10.2(2016):2386-2391. |
入库方式： OAI收割
来源：新疆理化技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。