Molecular charge distribution and dispersion of electronic states in the contact layer between pentacene and Cu(119) and beyond

被引：15

作者：

Annese, E. ^{[1
]}

Fujii, J. ^{[1
]}

Baldacchini, C. ^{[2
]}

Zhou, B. ^{[1
]}

Viol, C. E. ^{[1
]}

Vobornik, I. ^{[1
]}

Betti, M. G. ^{[2
]}

Rossi, G. ^{[1
,3
]}

机构：

[1] INFM CNR, TASC Natl Lab, I-34012 Trieste, Italy

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.77.205417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interaction of pentacene molecules in contact with the Cu(119) stepped surface has been directly imaged by scanning tunneling microscopy and analyzed by angle resolved photoemission spectroscopy. Interacting molecules, which are in contact with copper, generate dispersive electronic states associated with a perturbed electron charge density distribution of the molecular orbitals. In contrast, the electron charge density of molecules of the pentacene on top of the first layer, which is not in direct contact with the Cu surface, shows an intramolecular structure very similar to that of the free molecule. Our results indicate that the delocalization of the molecular states in the pentacene/Cu system is confined to the very first molecular layer at the interface.

引用

收藏

页数：5

相关论文

共 24 条

[11] Mixing of electronic states in pentacene adsorption on copper [J].

Ferretti, Andrea ;

Baldacchini, Chiara ;

Calzolari, Arrigo ;

Di Felice, Rosa ;

Ruini, Alice ;

Molinari, Elisa ;

Betti, Maria Grazia .

PHYSICAL REVIEW LETTERS, 2007, 99 (04)

[12] Long-range-ordered pentacene chains assembled on the Cu(119) vicinal surface [J].

Gavioli, L ;

Fanetti, M ;

Sancrotti, M ;

Betti, MG .

PHYSICAL REVIEW B, 2005, 72 (03)

[13] Quasi-1D pentacene structures assembled on the vicinal Cu(119) surface [J].

Gavioli, L ;

Fanetti, M ;

Pasca, D ;

Padovani, M ;

Sancrotti, M ;

Betti, MG .

SURFACE SCIENCE, 2004, 566 :624-627

[14] Temperature dependence of the electronic structure near EF and electron-phonon interaction in C60/Ag(100) single layers [J].

Goldoni, A ;

Cepek, C ;

Magnano, E ;

Laine, AD ;

Vandre, S ;

Sancrotti, M .

PHYSICAL REVIEW B, 1998, 58 (04) :2228-2232

[15] OBSERVATION AND CALCULATION OF INTERNAL STRUCTURE IN SCANNING-TUNNELING-MICROSCOPY IMAGES OF RELATED MOLECULES [J].

HALLMARK, VM ;

CHIANG, S ;

MEINHARDT, KP ;

HAFNER, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (24) :3740-3743

[16] Electronic structures of the highest occupied molecular orbital bands of a pentacene ultrathin film [J].

Kakuta, Haruya ;

Hirahara, Toru ;

Matsuda, Iwao ;

Nagao, Tadaaki ;

Hasegawa, Shuji ;

Ueno, Nobuo ;

Sakamoto, Kazuyuki .

PHYSICAL REVIEW LETTERS, 2007, 98 (24)

[17] Local and long-range order of carbon impurities on Fe(100): Analysis of self-organization at a nanometer scale [J].

Panaccione, G ;

Fujii, J ;

Vobornik, I ;

Trimarchi, G ;

Binggeli, N ;

Goldoni, A ;

Larciprete, R ;

Rossi, G .

PHYSICAL REVIEW B, 2006, 73 (03)

[18] Molecules on insulating films: Scanning-tunneling microscopy imaging of individual molecular orbitals [J].

Repp, J ;

Meyer, G ;

Stojkovic, SM ;

Gourdon, A ;

Joachim, C .

PHYSICAL REVIEW LETTERS, 2005, 94 (02)

[19] Imaging bond formation between a gold atom and pentacene on an insulating surface [J].

Repp, Jascha ;

Meyer, Gerhard ;

Paavilainen, Sami ;

Olsson, Fredrik E. ;

Persson, Mats .

SCIENCE, 2006, 312 (5777) :1196-1199

[20] Molecular adsorption and multilayer growth of pentacene on Cu(100): Layer structure and energetics [J].

Satta, M. ;

Iacobucci, S. ;

Larciprete, R. .

PHYSICAL REVIEW B, 2007, 75 (15)