Electronic structure and ordering of aromatic molecules on Au(111)

被引：1

作者：

France, CB ^{[1
]}

Frame, A ^{[1
]}

Parkinson, BA ^{[1
]}

机构：

[1] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA

来源：

PHYSICAL CHEMISTRY OF INTERFACES AND NANOMATERIALS III | 2004年 / 5513卷

关键词：

aromatic adsorption; band line up; chiral surface; STM; XPS; UPS; TPD;

D O I：

10.1117/12.556054

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：

Aromatic molecules, such as pentacene, sexiphenyl and naphtho[2,3-a]pyrene, adsorbed on Au(111) surfaces are studied with x-ray photoemission spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS), temperature programmed desorption (TPD) and scanning tunneling microscopy (STM). All the molecules developed a strong interface dipole indicative of charge transfer from the molecule to the substrate. At monolayer coverages or less a variety of two-dimensional ordered structures were discovered. Naphtho[2,3-a]pyrene, a 2D chrial adsorbate, forms chiral domains rater than a 2D racemic unit cell.

引用

页码：165 / 173

页数：9

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