Growth and ripening of two-dimensional palladium islands on Ni(111) surface

被引：12

作者：

Guo, XY ^{[1
]}

Zhong, B

Brault, P

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China

[2] Univ Orleans, CNRS, UMR 6606, Grp Rech Energet Milieux Ionises, F-45067 Orleans 2, France

来源：

SURFACE SCIENCE | 1998年 / 409卷 / 03期

关键词：

computer simulation; island growth; Monte Carlo method; nickel substrate; palladium; ripening; surface migration;

D O I：

10.1016/S0039-6028(98)00243-X

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：

The growth of palladium islands on a Ni(111) substrate during atomic vapour deposition is simulated by the Monte Carlo method. The growth follows a two-dimensional mechanism when palladium coverage is less than 0.4 monolayer above which the three-dimensional islands appear. The evolution of the averaged island size against coverage exhibits an exponential behaviour attributed to island diffusion. The substrate temperature T, has only the effect of compacting the island. The ripening of palladium islands can be achieved by various methods. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：452 / 457

页数：6

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