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Structure and Surface Interactions of Condensed Fullerene Materials

凝聚富勒烯材料的结构和表面相互作用

基本信息

批准号：
9222762
负责人：
Dror Sarid
金额：
$ 23.5万
依托单位：
University of Arizona
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1993
资助国家：
美国
起止时间：
1993-03-01 至 1996-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222762&HistoricalAwards=false
关键词：
Structure Surface Interactions Condensed Fullerene

项目摘要

Scanning tunneling microscopy (STM) and atomic force microscopy (AFM) are being used to directly image isolated fullerene molecules and obtain a mapping of their local density of states. The structure and electronic properties of the fullerenes are being studied by the surface microscopy tools. Fullerene-metal, fullerene-semiconductor, and fullerene-molecule interactions in condensed films are under study. Preparation of composite fullerene materials will be carried out using C-60 molecules embedded in methyl isobutyl ketone films. The latter have revealed pronounced intermolecular contrast, the origins of which are being investigated in this project. Finally, the tip-sample interactions involved in the microscopy technique is being investigated with the objective of improving the utility of these techniques. %%% This project concerns the characterization, by surface microscopy, of a technologically important group of the recently discovered fullerene molecules. Materials composed of these molecules have recently demonstrated dramatic properties of interest to solid state physicists as well as materials scientists and chemists. The proposed research will provide information about the structure and electronic properties of these materials. This information is of fundamental interest and should pave the way toward practical application of these materials.

扫描隧道显微镜（STM）和原子力显微镜 (AFM)正被用来直接成像孤立的富勒烯分子并获得它们的局域态密度的映射。的富勒烯的结构和电子性质正在被通过表面显微镜工具进行研究。富勒烯-金属，富勒烯-半导体和富勒烯-分子相互作用压缩膜正在研究中。制备复合富勒烯材料将使用C-60分子进行嵌在甲基异丁基酮薄膜中。后者透露，明显的分子间对比，其起源是在这个项目中进行了调查。最后，尖端-样品相互作用参与显微镜技术正在调查与目的是提高这些技术的实用性。 %%% 该项目涉及表征，通过表面显微镜，最近发现的一个技术上重要的群体富勒烯分子由这些分子组成的材料具有最近显示出引人注目的特性，国家物理学家以及材料科学家和化学家。的拟议的研究将提供有关结构的信息，这些材料的电子特性。这些信息是根本利益，并应铺平道路，以实际这些材料的应用。