Oxide templates for self-assembling arrays of metal nanoclusters

被引:40
作者
Berdunov, N. [1 ]
Mariotto, G.
Balakrishnan, K.
Murphy, S.
Shvets, I. V.
机构
[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[2] Univ Dublin Trinity Coll, Dept Phys, Ctr Res Adapt Nanostruct & Nanodevices, Dublin 2, Ireland
基金
爱尔兰科学基金会;
关键词
self-assembly of nanocluster arrays; patterned oxide surfaces; nanotemplates;
D O I
10.1016/j.susc.2006.07.059
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We demonstrate that ordered arrays of metal clusters of a few nanometers in size can be fabricated by self-assembly on a range of oxide nanotemplates. Two systems were chosen, FeO/Pt(111) and Fe3O4, having in common a reconstructed close-packed oxygen surface layer. Deposition of various metal films results in the formation of nanosized clusters arranged according to the surface long-range order. Employing ab-initio calculations we discuss the observed mechanism of site-selective nucleation of the metal nanoclusters. Finally, we discuss the existence of a wide family oxide templates that can be used for self-assembled growth of nanoclusters governed by the same rules. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:L287 / L290
页数:4
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