Modulation of Surface Charge Transfer through Competing Long-Range Repulsive versus Short-Range Attractive Interactions

被引：47

作者：

Fraxedas, J. ^{[1
]}

Garcia-Gil, S. ^{[1
]}

Monturet, S. ^{[2
,3
]}

Lorente, N. ^{[1
]}

Fernandez-Torrente, I. ^{[4
]}

Franke, K. J. ^{[4
]}

Pascual, J. I. ^{[4
]}

Vollmer, A. ^{[5
]}

Blum, R. -P. ^{[6
]}

Koch, N. ^{[6
]}

Ordejon, P. ^{[1
]}

机构：

[1] CSIC ICN, Ctr Invest Nanociencia & Nanotecnol, CIN2, E-08193 Barcelona, Spain

[2] Nanosci Grp, F-31055 Toulouse, France

[3] MANA Satellite CEMES CNRS, F-31055 Toulouse, France

[4] Free Univ Berlin, Inst Experimentalphys, D-14195 Berlin, Germany

[5] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany

[6] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 38期

关键词：

THIN-FILMS; WORK-FUNCTION; SI; SIMULATIONS; PATTERNS; TETRATHIAFULVALENE; ADSORPTION; INTERFACE; SYSTEMS; DIPOLE;

D O I：

10.1021/jp2050838

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 report a combined experimental and theoretical study of the modulation of surface charge transfer on the tetrathiafulvalene (TTF)/Au(111) interface as a function of coverage in the submonolayer regime by combining low-temperature scanning tunneling microscopy, high-resolution photoemission spectroscopy using synchrotron radiation, and density functional theory (DFT) calculations. The modulation is induced by the competition between long-range repulsive Coulombic interactions and short-range attractive hydrogen-bonding interactions. The system shows the characteristic pattern evolution, from monomeric stripes at low coverages to two-dimensional islands, with the formation of labyrinths in the crossover.

引用

页码：18640 / 18648

页数：9

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