Scanning tunneling microscopy characterization of organoselenium monolayers on Au(III)

被引：80
作者：
Dishner, MH
Hemminger, JC
Feher, FJ
机构：
[1] Department of Chemistry, University of California, Irvine
来源：
LANGMUIR | 1997年 / 13卷 / 18期
关键词：
D O I：
10.1021/la970397t
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Self-assembled monolayers were formed by immersing Au(111) surfaces into solutions of benzeneselenol and diphenyl diselenide. Chemisorption of benzeneselenol produced numerous gold islands (20-200 Angstrom in diameter) on the surface and a selenium-containing monolayer with a fundamental repeat unit of(3 root 3 x 2 root 3)R30 degrees. Upon annealing at 60 degrees C in air, these gold islands coalesce to form larger, hexagonal-shaped islands. Chemisorption of diphenyl diselenide is qualitatively similar and upon annealing appears to produce the same surface structures observed with benzeneselenol. These organoselenium-modified surfaces were investigated by scanning tunneling microscopy (STM) and Auger electron spectroscopy (AES).
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收藏
页码：4788 / 4790
页数：3
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