物理化学学报 >> 2001, Vol. 17 >> Issue (11): 978-981.doi: 10.3866/PKU.WHXB20011104

研究论文 上一篇    下一篇

一种新型C60-硫醚衍生物分子在金表面上的自组装

董栋;张生;朱涛;甘良兵;刘忠范   

  1. 北京大学纳米科技中心(CNST),北京大学稀土材料与化学国家重点实验室,北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2001-04-02 修回日期:2001-06-28 发布日期:2001-11-15
  • 通讯作者: 刘忠范 E-mail:lzf@chem.pku.edu.cn

FullereneTerminated SAMs on Gold(111):Formation and Characterization

Dong Dong;Zhang Sheng;Zhu Tao;Gan Liang-Bing;Liu Zhong-Fan   

  1. Center for Nanoscale Science & Technology (CNST) and State Key Laboratory of Rare Earth Materials Chemistry & Applications, College of Chemistry and Molecular Engineering,Peking University, Beijing 100871
  • Received:2001-04-02 Revised:2001-06-28 Published:2001-11-15
  • Contact: Liu Zhong-Fan E-mail:lzf@chem.pku.edu.cn

摘要: 报导了一种新型C60硫醚分子在金表面上自组装膜的形成,并通过接触角、扫描隧道显微术(STM)、X射线光电子能谱(XPS)、电化学和光电化学手段对其进行表征.高分辩STM形貌图证明,在Au(111)基底上C60基团存在并直观显示出特殊的单层膜结构. XPS分析表明,这一新型C60硫醚分子是通过金硫键固定在金表面上的,并且在组装过程中存在分子内碳硫键断裂步骤.

关键词: C60衍生物, 硫醚, 金(111), 自组装膜, 扫描隧道显微术, X射线光电子能谱

Abstract: We report in this paper the formation of new fullereneterminated selfassembled monolayers(SAMs) from the adsorption of unsymmetrical dialkylmonosulfide compound onto the Au(111) substrate via goldsulfur bonding. The highresolution STM images verified that C60 moieties are located at the outer surface and the XPS results provided clear evidence for S-C cleavage and Au-S bonding during the selfassembling process of this specific C60organosulfide on gold.

Key words: Fullerene, Organosulfide, Gold(111), SAM, STM, XPS