Growth and structure of Pd films on ZnO(0001)

被引：9
|
作者：
Bera, Parthasarathi [1 ]
Vohs, John M. [1 ]
机构：
[1] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 2006年 / 125卷 / 16期
关键词：
D O I：
10.1063/1.2363186
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 and structure of Pd films on ZnO(0001) were investigated using high resolution electron energy loss spectroscopy, x-ray photoelectron spectroscopy, and low energy electron diffraction. Vapor deposited Pd films at 300 K were found to follow a two-dimensional (2D) island growth mode, in which 2D metal islands are formed up to a critical coverage at which point growth occurs primarily in a layer-by-layer fashion on top of the islands. Heating to only 350 K was found to be sufficient to induce partial agglomeration of Pd films into three-dimensional particles. In addition to causing further agglomeration into particles, heating to 700 K resulted in partial reduction of the ZnO surface and the formation of a PdZn alloy. (c) 2006 American Institute of Physics.
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页数：7
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