Morphologies, structures, and interfacial electronic structure of perylene on Au(111)

被引：15
|
作者：
Manandhar, K. [1 ,2 ]
Sambur, J. B. [3 ]
Parkinson, B. A. [1 ,2 ]
机构：
[1] Univ Wyoming, Dept Chem, Laramie, WY 82071 USA
[2] Univ Wyoming, Sch Energy Resources, Laramie, WY 82071 USA
[3] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 06期
关键词：
gold; interface structure; island structure; organic semiconductors; scanning tunnelling microscopy; Schottky effect; semiconductor thin films; ultraviolet photoelectron spectra; X-ray photoelectron spectra; SCANNING-TUNNELING-MICROSCOPY; THIN-FILM TRANSISTORS; PHTHALOCYANINE OVERLAYERS; IRON PHTHALOCYANINE; PENTACENE; GROWTH; ADSORPTION; DEPOSITION; INJECTION; TRANSPORT;
D O I：
10.1063/1.3318682
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Various coverages of perylene thin films on Au(111) were investigated using scanning tunneling microscopy (STM) and ultraviolet photoelectron spectroscopy and x-ray photoelectron spectroscopy. A Schottky junction formed between Au(111) and perylene consisted of a large 0.65 eV interface dipole and a hole barrier height of 0.85 eV. A wetting layer of approximately 4 A degrees thickness was initially formed followed by island formation, consistent with Stranski-Krastanov growth. Room temperature STM investigations of nominal one monolayer perylene films revealed symmetry equivalent domains and two different stable commensurate lattice structures. Perylene film growth mode, film structure and the energy level diagram are discussed.
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页数：8
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