| 正十八烷醇在HOPG上形成自组装膜的吸附特性 |
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| 引用本文： | 钱丽萍,邓文礼. 正十八烷醇在HOPG上形成自组装膜的吸附特性[J]. 物理化学学报, 2008, 24(3): 443-447. DOI: 10.3866/PKU.WHXB20080316 |
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| 作者姓名： | 钱丽萍 邓文礼 |
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| 作者单位： | College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China |
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| 基金项目： | 国家自然科学基金(20643001)及广东省科技计划项目(20061311801002)资助 |
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| 摘 要： | 研究了正十八烷醇在高定向热解石墨(HOPG)上形成自组装膜的吸附特性, 正十八烷醇在室温下从溶液中吸附至HOPG上形成整齐定向排列的单层自组装膜. 通过扫描隧道显微镜(STM)、接触角测量和X射线光电子能谱(XPS)分析了正十八烷醇单层自组装膜在HOPG上的结构. 实验结果表明, 正十八烷醇自组装膜在基底上成平铺或直立形态, 由于分子在基底上覆盖程度的不同, 会导致它在基底上排列的方式有所不同.
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| 关 键 词： | 高定向热解石墨 单分子自组装膜 扫描隧道显微镜 接触角 X射线光电子能谱 |
| 收稿时间： | 2007-10-09 |
| 修稿时间： | 2007-10-09 |
Adsorption Characteristics of Self-assembled 1-Octadecanol Layer on HOPG |
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| QIAN Li-Ping,DENG Wen-Li. Adsorption Characteristics of Self-assembled 1-Octadecanol Layer on HOPG[J]. Acta Physico-Chimica Sinica, 2008, 24(3): 443-447. DOI: 10.3866/PKU.WHXB20080316 |
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| Authors: | QIAN Li-Ping DENG Wen-Li |
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| Affiliation: | College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China |
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| Abstract: | Long-chain alkanol,1-C18H37OH,adsorbed from solution onto highly oriented pyrolytic graphite(HOPG)and formed ordered,oriented monolayer films at room temperature in air. The formation and structure of l-octadecanol self-assembled monolayers(SAMs)on HOPG were examined using scanning tunneling microscopy(STM),contact angle measurement,and X-ray photoelectron spectroscopy (XPS).Our experimental results indicated that 1-octadecanol SAMs grew in domains,With molecules arranged either horizontally or vertically on the substrate.Moreover.the permutation means of the molecule showed relevance to the surface coverage of 1-octadecanol SAMs on the HOPG. |
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| Keywords: | HOPG SAMs STM Contact angle XPS |
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