期刊
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 8, 期 -, 页码 892-905出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.8.91
关键词
organic thin films; selenolates; self-assembled monolayers; thiolates; triptycene
资金
- European Union (FP6 STReP SURMOF) [NMP4-CT-2006-032109]
- German BMBF [05ESXBA/5]
- Deutsche Forschungsgemeinschaft
- Natural Science Foundation of China [NSFC 21673032]
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University [201507]
To study the implications of highly space-demanding organic moieties on the properties of self-assembled monolayers (SAMs), triptycyl thiolates and selenolates with and without methylene spacers on Au(111) surfaces were comprehensively studied using ultra-high vacuum infrared reflection absorption spectroscopy, X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy and thermal desorption spectroscopy. Due to packing effects, the molecules in all monolayers are substantially tilted. In the presence of a methylene spacer the tilt is slightly less pronounced. The selenolate monolayers exhibit smaller defect densities and therefore are more densely packed than their thiolate analogues. The Se-Au binding energy in the investigated SAMs was found to be higher than the S-Au binding energy.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据