Two dimensional phase diagram of decanethiol on Au(111)
Two dimensional phase diagram of decanethiol on Au(111)
复制标题
DOI：
10.1021/la0012788
复制
发表时间：
2001-02-20
期刊：
影响因子：
3.9
通讯作者：
White, JM
中科院分区：
文献类型：
--
作者：
Poirier, GE;Fitts, WP;White, JM
基于变温双真空扫描隧道显微镜的数据，我们提出了一个二维相图的单分子层癸醇Au（III）。测定了四个三相点温度：T-1约为27 ℃，T-2约为33 ℃，T-3约为35 ℃，T-4约为56 ℃。T-1定义了最低温度熔点，T-4定义了温度，高于该温度条纹相是亚稳的。这些数据提供了一个基本的框架来理解和控制介观单层结构，而且，他们提供了基本的洞察到二维相行为的分子与许多自由度。
On the basis of variable-temperature ultrahigh vacuum scanning tunneling microscopy data, we propose a two-dimensional phase diagram of monolayer decanethiol on Au(lll). Four triple-point temperatures were determined: T-1 at approximate to 27 degreesC, T-2 at approximate to 33 degreesC, T-3 at approximate to 35 degreesC, and T-4 at approximate to 56 degreesC. T-1 defines the lowest temperature melting point, and T-4 defines the temperature above which striped phases are metastable. These data provide a fundamental framework to understand and control mesoscale monolayer structure; moreover, they provide fundamental insight into the two-dimensional phase behavior of molecules with many degrees-of-freedom.