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| 纳米团簇晶体的制备和结构研究 | |
| 引用本文： | 贾金锋,窦瑞芬,李绍春,刘洪,徐茂杰,刘熙,王俊忠,厉建龙,薛其坤,李志强,张绳百.纳米团簇晶体的制备和结构研究[J].世界科技研究与发展,2004,26(5):40-50. |
| 作者姓名： | 贾金锋 窦瑞芬 李绍春 刘洪 徐茂杰 刘熙 王俊忠 厉建龙 薛其坤 李志强 张绳百 |
| 作者单位： | 1. 中国科学院物理研究所表面物理国家重点实验室,北京,100080,中国 2. Steacie Institute for Molecular Sciences,National Research Council of Canada,Ottawa,Ontario,KIA OR6,Canada 3. National Renewable Energy Laboratory,Golden,CO 80401,USA |
| 基金项目： | 中国自然科学基金资助 (批准号 :6962 5 60 8和 10 1740 89)，美国DOE/OS/BES(批准号 :DE AC3 6 99GO10 3 3 7和DE AC0 5 0 0OR2 2 72 5 )，美国NSF(资金号 :DMR 0 0 71893 )资助 |
| 摘 要： | 利用表面调制“幻数团簇”的方法制备出Al、Ga和In的纳米团簇人造晶体。这种方法是用Si(111) 7× 7表面作为“模板”生长尺寸相同和分布有序的纳米团簇。通过扫描隧道显微镜 (STM )原位分析结合第一性原理计算确定了金属纳米团簇的原子结构以及这些结构的形成机理。我们的研究表明对生长动力学的精确控制是制备团簇晶体的关键所在。此外 ,这种方法并不局限于制备某一种金属团簇。人造纳米团簇具有高的热稳定性和独特的结构使它们有希望在实际中得到广泛的应用。 |
| 关 键 词： | 晶体 纳米团簇 金属团簇 结构研究 原子结构 表面 有序 扫描隧道显微镜（STM） 制备 生长动力学 |
Fabrication and Structure Analysis of Al, Ga and In Nanocluster Two-dimensional Crystals |
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| JIA Jinfeng,DOU Ruifen,LI Shaochun,LIU Hong,XU Maojie,LIU Xi,WANG Junzhong,LI Jianlong,XUE Qikun,LI Zhiqiang,ZHANG Shengbai.Fabrication and Structure Analysis of Al, Ga and In Nanocluster Two-dimensional Crystals[J].World Sci-tech R & D,2004,26(5):40-50. | |
| Authors: | JIA Jinfeng DOU Ruifen LI Shaochun LIU Hong XU Maojie LIU Xi WANG Junzhong LI Jianlong XUE Qikun LI Zhiqiang ZHANG Shengbai |
| Institution: | JIA Jinfeng 1 DOU Ruifen 1 LI Shaochun 1 LIU Hong 1 XU Maojie 1 LIU Xi 1 WANG Junzhong 1 LI Jianlong 1 XUE Qikun 1 LI Zhiqiang 2 ZHANG Shengbai 3 |
| Abstract: | Using a novel technique of surface mediated magic cluster with identical size, in which the Si(111) surface is used as a template for ordering the cluster, we have fabricated the artificial nanocluster crystals of In, Ga and Al. The atomic structures, formation mechanism and stability of the nanoclusters were studied with in-situ scanning tunneling microscopy observation combined with first-principles total energy calculations. Our study shows that delicate control of growth kinetics is extremely pivotal for the cluster crystal fabrication, and there is essentially no limitation to this method. The high thermal stability and unique structure make these artificial nanocluster crystals promising for various applications. |
| Keywords: | In Ga and Al identical and ordered nanocluster artificial crystal scanning tunneling microscopy(STM) |
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