The electronic states of ordered thin films of perylene on Ag (110)

被引：12
作者：
Huang, H
Mao, HY
Chen, Q
Yan, XZ
Qian, HQ
Zhang, JH
Li, HY
He, PM
Bao, SN [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
[2] Univ St Andrews, Sch Chem & Ultrafast Photon Collaborat, St Andrews KY16 9ST, Fife, Scotland
来源：
PHYSICA B-CONDENSED MATTER | 2004年 / 352卷 / 1-4期
基金：
中国国家自然科学基金;
关键词：
organic semiconductor material; ultraviolet photoemission spectroscopy; structure and electronic structure;
D O I：
10.1016/j.physb.2004.06.035
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The growth of perylene on Ag (110) has been studied by ultraviolet photoemission spectroscopy measurements and low-energy electron diffraction. Four emission features of the organic material are located at 3.5, 4.8, 6.4 and 8.5 eV, respectively, below the Fermi level. An ordered structure of c(6 x 2) can be observed when the organic film is about a monolayer (3Angstrom thickness). The angle-resolved ultraviolet photoemission spectroscopy measurements show that the molecular plane of perylene near the interface is parallel to the substrate. The desorption of the organic material occurs with warming the substrate; the perylene molecules are stable on the Ag (110) surface and no decomposition is observed below 140degreesC. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：36 / 41
页数：6
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