Step-Directed Deposition of Au Nanostructures By Electron Beam Evaporation
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第2期
论文作者：LIU Zhongfan Wang Yinchuan Liu Zhihong Xu Xiangdong
Key words：electron beam evaporation; HOPG; Au; controlled growth; ultrahigh vacuum;
Abstract: Au atoms were vaporized by electron beam evaporation, and their subsequent growths on Si (111 ) and highly ordered pyrolytic graphite (HOPG) substrates were studied using atomic force microscopy. Results show that Au nanoparticles tend to nucleate and grow regularly along the step edges of HOPG, however, nanoparticles are distributed homogeneously over the whole Si substrate. The possibility of controlled growth of Au in ultrahigh vacuum with peculiar surface structures was preseuted.
LIU Zhongfan1，Wang Yinchuan1，Liu Zhihong2，Xu Xiangdong2
(1.Center for Nanoscale Science & Technology,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China;
2.Institute of Microelectronics,Tsinghua University,Beijing 100084,China)
Abstract:Au atoms were vaporized by electron beam evaporation, and their subsequent growths on Si (111 ) and highly ordered pyrolytic graphite (HOPG) substrates were studied using atomic force microscopy. Results show that Au nanoparticles tend to nucleate and grow regularly along the step edges of HOPG, however, nanoparticles are distributed homogeneously over the whole Si substrate. The possibility of controlled growth of Au in ultrahigh vacuum with peculiar surface structures was preseuted.
Key words:electron beam evaporation; HOPG; Au; controlled growth; ultrahigh vacuum;
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