Self organization of pentacene grown on Cu(119)

被引:28
作者
Annese, E.
Viol, C. E.
Zhou, B.
Fujii, J.
Vobornik, I.
Baldacchini, C.
Betti, M. G.
Rossi, G.
机构
[1] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy
[2] CNR, TASC Lab, I-34012 Trieste, Italy
[3] Univ Roma La Sapienza, INFM, I-00185 Rome, Italy
[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
关键词
vicinal single crystal surfaces; photoelectron spectroscopy; low-energy electron diffraction (LEED); scanning tunneling microscopy (STM); pentacene;
D O I
10.1016/j.susc.2007.04.131
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
We have investigated the structural and electronic properties of a pentacene film (similar to 2 nm) grown on the Cu(1 1 9) substrate using scanning tunneling microscopy (STM) and synchrotron based angle-resolved UV photoelectron spectroscopy at room temperature. STM images indicate an ordered superstructure of pentacene molecules lying almost flat with respect to the substrate. From angular-resolved photoemission spectra, we have observed an energy-band dispersion of about 100 meV for the highest occupied molecular orbital in the direction perpendicular to the pentacene surface. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:4242 / 4245
页数:4
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